CN111968245B - Three-dimensional space marking line display method and device, electronic equipment and storage medium - Google Patents
Three-dimensional space marking line display method and device, electronic equipment and storage medium Download PDFInfo
- Publication number
- CN111968245B CN111968245B CN202010648119.5A CN202010648119A CN111968245B CN 111968245 B CN111968245 B CN 111968245B CN 202010648119 A CN202010648119 A CN 202010648119A CN 111968245 B CN111968245 B CN 111968245B
- Authority
- CN
- China
- Prior art keywords
- current
- corner point
- wall surface
- wall
- determining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/003—Navigation within 3D models or images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2219/00—Indexing scheme for manipulating 3D models or images for computer graphics
- G06T2219/012—Dimensioning, tolerancing
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Computer Graphics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Architecture (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Processing Or Creating Images (AREA)
Abstract
The invention provides a method and a device for displaying a three-dimensional space marking, electronic equipment and a storage medium, wherein the method comprises the following steps: determining the current position of a virtual camera corresponding to a current display picture in a three-dimensional space of a room in the current display picture of the three-dimensional space of the room, and determining a current wall corner point in a current view; judging whether the current wall corner point is shielded by the wall surface or not according to the current position; when the current wall corner point is not shielded by the wall surface, acquiring the space size corresponding to the current wall corner point, displaying the marking line corresponding to the current wall corner point in a current display picture, and marking the space size on the marking line; and when the current wall corner point is shielded by the wall surface, canceling to display the marked line corresponding to the current wall corner point in the current display picture. The invention improves the accuracy of marking position display and improves the user experience.
Description
Technical Field
The invention relates to the technical field of virtual reality, in particular to a three-dimensional space marking display method and device, electronic equipment and a storage medium.
Background
With the development of Virtual Reality (VR) technology, the VR technology is now widely used in a panoramic viewing room based on a three-dimensional space. When a user views a room in a panoramic manner in a three-dimensional space, the user may view the room in a virtual reality manner and also want to know the length and width of each wall so as to roughly estimate the size of the room.
In the prior art, under the condition that a 3D model of a room is generated based on a manufacturing end, a wall corner point in a current sight line is found when a camera is rotated according to data of a wall surface of the 3D model, and then a marking line is drawn based on the wall corner point. If there is the spill current room, the corner point of the wall of spill inside can probably be sheltered from by other walls, and because this corner point is in current sight, consequently can draw the marking of this corner point of wall, leads to this marking to be located and shelters from the wall, and does not correspond the wall laminating with the corner point, leads to the marking position of show inaccurate, and user experience is poor.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a reticle displaying method, apparatus, electronic device and storage medium for a three-dimensional space that overcome or at least partially solve the above problems.
According to a first aspect of the present invention, there is provided a method for displaying a reticle in a three-dimensional space, comprising:
determining the current position of a virtual camera corresponding to a current display picture in a three-dimensional space of a room in the current display picture of the three-dimensional space of the room, and determining a current wall corner point in a current view;
judging whether the current wall corner point is shielded by the wall surface or not according to the current position;
when the current wall corner point is not shielded by the wall surface, acquiring the space size corresponding to the current wall corner point, displaying the marking line corresponding to the current wall corner point in a current display picture, and marking the space size on the marking line; and when the current wall corner point is shielded by the wall surface, canceling to display the marked line corresponding to the current wall corner point in the current display picture.
Optionally, the determining, according to the current position, whether the current wall corner point is shielded by a wall surface includes:
determining a line segment formed by the current position and the current corner point, and projecting the line segment onto the ground of the room three-dimensional space to obtain a projected line segment;
determining line segments formed by every two corner points of the same wall surface in the three-dimensional space of the room;
determining the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface;
if the number is larger than or equal to a preset number threshold value, determining that the current wall corner point is shielded by the wall surface; and if the number is smaller than a preset number threshold value, determining that the current wall corner point is not shielded by the wall surface.
Optionally, the determining the number of intersection points between the projection line segment and the line segments formed by two corner points on the same wall surface includes:
respectively judging whether two end points of the projection line segment are the same as the wall corner points, if so, determining that the projection line segment and a line segment taking the same wall corner point as an end point have an intersection point as a first intersection point;
respectively judging whether two end points of the projection line segment are positioned on two sides of a straight line formed by the two corner points positioned on the same wall surface and whether the two corner points positioned on the same wall surface are positioned on two sides of the straight line formed by the two corner points positioned on the same wall surface, if so, determining that the projection line segment and a line segment formed by the two corner points positioned on the same wall surface have an intersection point, and taking the intersection point as a second intersection point; wherein, two wall corner points on the same wall surface are wall corner points outside the first intersection point in the room;
and counting the number of the first intersection points and the second intersection points to obtain the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface.
Optionally, the preset number threshold is 2.
Optionally, the determining a current wall corner point in the current view includes:
determining the space coordinate range in the current sight and obtaining the space coordinates of the corner points in the room;
and taking the corner point of the space coordinate in the space coordinate range as the current corner point in the current view.
Optionally, the obtaining of the spatial dimension corresponding to the current corner point, displaying the marking corresponding to the current corner point in the current display picture, and marking the spatial dimension on the marking includes:
acquiring the size between the current corner point and the corner point of the adjacent previous wall surface as a first size, acquiring the size between the current corner point and the vertex positioned on the upper side of the current corner point as a second size, and acquiring the size between the vertex positioned on the same wall surface and the same horizontal plane as the current corner point and the current corner point as a third size;
and displaying a first marking between the current corner point and the corner point of the adjacent previous wall in the current display picture, displaying the first size on the first marking, displaying a second marking between the current corner point and the vertex positioned on the upper side of the current corner point in the current display picture, displaying the second size on the second marking, displaying a third marking between the vertex positioned on the same wall surface and the same horizontal plane with the current corner point and the current corner point in the current display picture, and displaying the third size on the third marking.
Optionally, before determining whether the current wall corner point is covered by the wall surface according to the current position, the method further includes:
rotating the virtual camera based on a camera rotation instruction of a user to obtain a current display picture of a three-dimensional space of a room;
and clearing the marked lines displayed before the virtual camera rotates.
According to a second aspect of the present invention, there is provided a reticle displaying apparatus for a three-dimensional space, comprising:
the wall corner point determining module is used for determining the current position of a virtual camera corresponding to a current display picture in a three-dimensional space of a room in the three-dimensional space of the room and determining the current wall corner point in the current view;
the judging module is used for judging whether the current wall corner point is shielded by the wall surface according to the current position;
the marking processing module is used for acquiring the space size corresponding to the current wall corner point when the current wall corner point is not shielded by a wall surface, displaying the marking corresponding to the current wall corner point in a current display picture, and marking the space size on the marking; and when the current wall corner point is shielded by the wall surface, canceling to display the marked line corresponding to the current wall corner point in the current display picture.
Optionally, the determining module includes:
the projection unit is used for determining a line segment formed by the current position and the current corner point and projecting the line segment onto the ground of the three-dimensional space of the room to obtain a projected line segment;
the line segment determining unit is used for determining line segments formed by two wall corner points on the same wall surface in the three-dimensional space of the room;
the intersection point number determining unit is used for determining the number of intersection points between line segments formed by the projection line segments and the wall corner points on the same wall surface in pairs;
the judgment result determining module is used for determining that the current wall corner point is shielded by the wall surface if the number is greater than or equal to a preset number threshold; and if the number is smaller than a preset number threshold value, determining that the current wall corner point is not shielded by the wall surface.
Optionally, the intersection number determining unit is specifically configured to:
respectively judging whether two end points of the projection line segment are the same as the wall corner points, if so, determining that the projection line segment and a line segment taking the same wall corner point as an end point have an intersection point as a first intersection point;
respectively judging whether two end points of the projection line segment are positioned on two sides of a straight line formed by the two corner points positioned on the same wall surface and whether the two corner points positioned on the same wall surface are positioned on two sides of the straight line formed by the two corner points positioned on the same wall surface, if so, determining that the projection line segment and a line segment formed by the two corner points positioned on the same wall surface have an intersection point, and taking the intersection point as a second intersection point; wherein, two wall corner points on the same wall surface are wall corner points outside the first intersection point in the room;
and counting the number of the first intersection points and the second intersection points to obtain the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface.
Optionally, the preset number threshold is 2.
Optionally, the wall corner point determining module includes:
the spatial coordinate determination unit is used for determining the spatial coordinate range in the current sight and acquiring the spatial coordinates of the corner points in the room;
and the wall corner point determining unit is used for taking the wall corner point of which the space coordinate is in the space coordinate range as the current wall corner point in the current doorway.
Optionally, the reticle processing module includes:
a size obtaining unit, configured to obtain a size between the current corner point and a corner point of an adjacent previous wall surface, obtain, as a first size, a size between the current corner point and a vertex located on an upper side of the current corner point, obtain, as a second size, a size between a vertex located on the same wall surface and on the same horizontal plane as the current corner point and the current corner point, and obtain, as a third size, a size between the current corner point and the vertex located on the same horizontal plane as the current corner point;
and the marking display unit is used for displaying a first marking between the current corner point and the corner point of the adjacent previous wall in the current display picture, displaying the first size on the first marking, displaying a second marking between the current corner point and the vertex positioned on the upper side of the current corner point in the current display picture, displaying the second size on the second marking, displaying a third marking between the vertex positioned on the same wall surface and the same horizontal plane with the current corner point and the current corner point in the current display picture, and displaying the third size on the third marking.
Optionally, the apparatus further comprises:
the camera rotating module is used for rotating the virtual camera based on a camera rotating instruction of a user to obtain a current display picture of a three-dimensional space of a room;
and the marking removing module is used for removing the marking displayed before the virtual camera rotates.
According to a third aspect of the present invention, there is also provided a server, a processor, a memory and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, implementing the reticle presentation method for a three-dimensional space according to the first aspect.
According to a fourth aspect of the present invention, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the reticle presentation method for three-dimensional space according to the first aspect.
The invention provides a method, a device, electronic equipment and a storage medium for displaying marked lines of a three-dimensional space, which are characterized in that the current position of a virtual camera in the three-dimensional space of a room corresponding to the current display picture is determined in the current display picture of the three-dimensional space of the room, the current wall corner point in the current view is determined, whether the current wall corner point is shielded by a wall surface is judged according to the current position, the space size corresponding to the current wall corner point is obtained when the current wall corner point is not shielded by the wall surface, the marked line corresponding to the current wall corner point is displayed in the current display picture, the space size is marked on the marked line, when the current wall corner point is shielded by the wall surface, the marked line corresponding to the current wall corner point is cancelled in the current display picture, the corresponding marked line is not displayed when the current wall corner point is shielded by the wall surface, the marked line is displayed only when the current wall corner point is not shielded by the wall surface, so that the displayed marked line can be attached to the corresponding wall surface, the accuracy of marking position show is improved, user experience is promoted.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
FIG. 1 is a flowchart illustrating steps of a method for displaying a reticle in a three-dimensional space according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a polar coordinate system in an embodiment of the invention;
FIG. 3 is a schematic diagram of a relationship of a virtual camera to a screen of an electronic device in an embodiment of the invention;
FIG. 4 is a top view of a room in an embodiment of the present invention;
FIG. 5 is a block diagram of a reticle display apparatus for three-dimensional space according to an embodiment of the present invention;
fig. 6 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 is a flowchart of steps of a three-dimensional space reticle display method provided in an embodiment of the present invention, which may be executed by an electronic device such as a terminal device or a server, and is suitable for displaying a reticle in a concave room, as shown in fig. 1, the method may include:
The wall corner point may refer to a lower left vertex of four vertices of a wall surface, or may refer to a lower right vertex, an upper left vertex, or an upper right vertex of a wall surface. The right lower vertex of the current wall surface is the same as the left lower vertex of the adjacent wall surface, and the right lower vertex is called the wall corner point of the adjacent wall surface.
One or more panoramic cameras may be configured in a room to capture panoramic images at different locations, and a three-dimensional space of the room is obtained based on the panoramic images captured by the panoramic cameras. Therefore, for a current display picture in a three-dimensional space of a room, a panoramic camera for shooting the current display picture can be determined, based on the room position where the panoramic camera is located, the current position of a virtual camera corresponding to the current display picture in the three-dimensional space of the room can be determined, based on the corresponding relationship between the display picture and the camera rotation angle, the current rotation angle of the virtual camera for shooting the current display picture can be determined, and based on the current rotation angle, the current position and the three-dimensional space of the room, the current corner point in the current view can be determined. The virtual camera can rotate 360 degrees around the horizontal direction and 360 degrees around the vertical direction, so that pictures of the room in three-dimensional space at different angles can be displayed in the interface, and the rotating shaft of the virtual camera is predefined.
In one embodiment of the present invention, the determining a current corner point in the current view includes: determining the space coordinate range in the current sight and obtaining the space coordinates of the corner points in the room; and taking the corner point of the space coordinate in the space coordinate range as the current corner point in the current view.
The spatial coordinate range in the current viewport can be represented by polar coordinates, and the spatial coordinates of the wall corner points refer to the spatial coordinates of the wall corner points in the room, and can be converted back to the polar coordinates during calculation.
Establishing a polar coordinate system as shown in FIG. 2 with the current position and the preset starting direction of the virtual camera as the origin, wherein the x-axis and the z-axis form a horizontal plane, the z-axis and the y-axis form a vertical plane, from the current rotation angle of the virtual camera, a spatial coordinate range within the current view may be determined, the current rotation angle comprising a rotation angle alpha along the y-axis and a rotation angle beta along the x-axis, in determining the spatial coordinate range within the current viewport, the relationship of the virtual camera to the electronic device screen may be represented as shown in figure 3, i.e. the angle 1 between the ray from the current centerline within the viewport and the virtual camera to the center point of the horizontal edge of the screen can be determined, and determining an angle 2 between a center line in the current viewport and a ray from the virtual camera to a center point of a vertical edge of the screen, such that a spatial coordinate range in the current viewport can be represented at said angles 1 and 2. Obtaining the spatial coordinates of a corner point in a room, and converting the spatial coordinates into a polar coordinate form in the polar coordinate system, that is, determining a rotation angle of the corner point, where the rotation angle of the corner point includes a rotation angle phi along a y-axis (which is not denoted by a reference numeral for convenience of description) and a rotation angle theta along an x-axis (which is not denoted by a reference numeral for convenience of description), calculating absolute values of differences between the rotation angle of the corner point and the current rotation angle of the virtual camera, that is, calculating | phi-alpha | and | theta-beta |, that is, obtaining an included angle between a ray from the virtual camera to the corner point and a center line, and if the included angle is less than or equal to an included angle corresponding to the current view port, determining that the wall is in the current view port, that is, that if | phi-alpha | is less than angle 1, and | theta-beta | is less than angle 2, the spatial coordinates of the corner point are determined to be within the spatial coordinates range within the current viewport so that the corner point can be taken as the current corner point within the current viewport. For other wall corner points, it is also determined whether the current wall corner point is located in the current view in the above-mentioned manner, so that the current wall corner point in the current view can be determined. All corner points in the current doorway, including the corner points shielded by the wall surface, can be obtained in this way.
When a plurality of wall corner points exist in the current viewport, a wall corner point closest to the screen center point can be selected from the wall corner points to serve as the current wall corner point. And if the current wall corner point is shielded by the wall surface after subsequent judgment, selecting another wall corner point closest to the central point of the screen from the plurality of wall corner points as the current wall corner point, and performing subsequent judgment and marking line display.
Those skilled in the art will appreciate that the embodiment of the present invention is only equivalent to the form shown in fig. 3 in terms of the relationship between the virtual camera and the screen of the electronic device, so as to describe the range that can be seen in the screen of the electronic device, i.e. the current viewport of the electronic device.
And step 102, judging whether the current wall corner point is shielded by the wall surface or not according to the current position, if not, executing step 103, and if so, executing step 104.
And judging whether the current wall corner point is shielded by the wall surface or not according to the current position and the space data of the room corresponding to the three-dimensional space of the room. The spatial data of the room may include spatial coordinates of various vertices within the room.
In an embodiment of the present invention, the determining whether the current wall corner point is blocked by a wall surface according to the current position includes:
determining a line segment formed by the current position and the current corner point, and projecting the line segment onto the ground of the room three-dimensional space to obtain a projected line segment;
determining line segments formed by every two corner points of the same wall surface in the three-dimensional space of the room;
determining the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface;
if the number is larger than or equal to a preset number threshold value, determining that the current wall corner point is shielded by the wall surface; and if the number is smaller than a preset number threshold value, determining that the current wall corner point is not shielded by the wall surface.
The two wall corner points on the same wall surface mean that the two wall corner points are on the same wall surface, but the two wall corner points are the wall corner points of two adjacent wall surfaces. The preset number threshold is 2.
And determining a line segment formed by the current position and the current wall corner point according to the space coordinates of the current position and the current wall corner point, and projecting the line segment onto the ground of the three-dimensional space of the room to obtain a projected line segment. Because the wall corner points are all positioned on the ground, the line segments can be projected on the ground, and whether the wall corner points are shielded by the wall surface is determined by the two-dimensional coordinate system of the ground, so that the calculation is convenient. Because two adjacent corner points are located on the same wall surface, line segments formed by every two corner points located on the same wall surface in a three-dimensional space of a room can be determined firstly, whether intersection points exist in each line segment formed by the projection line segment and the wall corner points in a two-two mode or not is determined respectively, the number of the intersection points is counted, if the number of the intersection points is larger than or equal to a preset number threshold value, it is determined that the current wall corner point is shielded by the wall surface, and if the number of the intersection points is smaller than the preset number threshold value, it is determined that the current wall corner point is not shielded by the wall surface.
Fig. 4 is a top view of a room in an embodiment of the present invention, and as shown in fig. 4, an intersection point F is located between a projection line segment AB composed of a current position a and a current wall corner point B and a line segment composed of a wall corner point C and a wall corner point D, and an intersection point F is located between the projection line segment AB and a line segment composed of a wall corner point B and a wall corner point E, so that 2 intersection points are located between two line segments composed of a projection line segment and a wall corner point on the same wall surface, and it is seen that the current wall corner point B is blocked by the wall surface where the wall corner point C and the wall corner point D are located. If the current wall corner point is C, an intersection point is formed between the projection line segment AC and the line segment formed by the wall corner point B and the wall corner point C, and no intersection point is formed between the projection line segment AC and the line segment formed by the other wall corner points, namely, an intersection point is formed between the projection line segment AC and the line segment formed by every two wall corner points on the same wall surface, so that the current wall corner point is not shielded by the wall surface.
The line segment formed by the current position and the current corner point is projected to the ground of the room three-dimensional space and calculated on the ground, so that the space calculation is converted into plane calculation, the calculation amount can be reduced, and the processing speed can be improved.
Of course, the calculation may be performed in a three-dimensional space manner, in addition to the above-described manner of projection onto the ground.
In an embodiment of the present invention, the determining the number of intersection points between the projection line segment and the line segment formed by two corner points on the same wall surface includes:
respectively judging whether two end points of the projection line segment are the same as the wall corner points, if so, determining that the projection line segment and a line segment taking the same wall corner point as an end point have an intersection point as a first intersection point;
respectively judging whether two end points of the projection line segment are positioned on two sides of a straight line formed by the two corner points positioned on the same wall surface and whether the two corner points positioned on the same wall surface are positioned on two sides of the straight line formed by the two corner points positioned on the same wall surface, if so, determining that the projection line segment and a line segment formed by the two corner points positioned on the same wall surface have an intersection point, and taking the intersection point as a second intersection point; wherein, two wall corner points on the same wall surface are wall corner points outside the first intersection point in the room;
and counting the number of the first intersection points and the second intersection points to obtain the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface.
When the number of intersection points between the projection line segment and the line segment formed by the wall corner points on the same wall surface in pairs is determined, whether two end points of the projection line segment are the same as the wall corner points in the three-dimensional space of a room or not can be respectively judged, if so, the same wall corner point is determined to be an intersection point of the projection line segment and the line segment taking the same wall corner point as an end point, the intersection point is taken as a first intersection point, and if not, the first intersection point is determined not to exist; then respectively judging whether two end points of the projection line segment are positioned on two sides of a straight line formed by two corner points positioned on the same wall surface and the two corner points positioned on the same wall surface are positioned on two sides of the straight line formed by the two corner points positioned on the same wall surface, when judging, excluding the corner points with the corner points being first intersection points, namely, not considering the corner points, avoiding repeated calculation, if the judgment result is yes, determining that the projection line segment and the line segment formed by the two corner points have an intersection point, taking the intersection point as a second intersection point, and if the judgment result is no, determining that the second intersection point does not exist; and after the two judgments are completed, counting the number of the first intersection points and the second intersection points to obtain the number of intersection points between the projection line segments and the line segments formed by the two corner points on the same wall surface. Through the judgment and calculation, more accurate intersection point number can be obtained.
When judging whether two end points of the projection line segment are positioned on two sides of a line segment formed by two wall corner points on the same wall surface, a linear equation of a line segment formed by the two wall corner points can be established, the two end points of the projection line segment are respectively substituted into the linear equation, if the value obtained by substituting one end point into the linear equation is less than 0, and the value obtained by substituting the other end point into the linear equation is greater than 0, the two end points of the projection line segment are determined to be positioned on two sides of the line formed by the two wall corner points, and if the values obtained by substituting the two end points of the projection line segment into the linear equation are both greater than 0 or both less than 0, the two end points of the projection line segment are determined to be positioned on the same side of the line formed by the two wall corner points. Similarly, when judging whether the two wall corner points on the same wall surface are positioned on two sides of the line where the projection line segment is positioned, a linear equation of the line where the projection line segment is positioned can be established, the two wall corner points are respectively substituted into the linear equation, if the value obtained by substituting one wall corner point into the linear equation is less than 0, and the value obtained by substituting the other wall corner point into the linear equation is greater than 0, the two wall corner points are determined to be positioned on two sides of the line where the projection line segment is positioned, and if the values obtained by substituting the two wall corner points into the linear equation are both greater than 0 or both less than 0, the two wall corner points are determined to be positioned on the same side of the line where the projection line segment is positioned. And the projection line segment and the line segment consisting of the two corner points on the same wall surface have a second intersection point only when the two end points of the projection line segment are positioned on the two sides of the straight line consisting of the two corner points on the same wall surface and the two corner points on the same wall surface are positioned on the two sides of the straight line on which the projection line segment is positioned.
In an embodiment of the present invention, before the determining whether the current wall corner point is blocked by a wall surface according to the current position, the method further includes:
rotating the virtual camera based on a camera rotation instruction of a user to obtain a current display picture of a three-dimensional space of a room;
and clearing the marked lines displayed before the virtual camera rotates.
Wherein the camera selection instruction may include a camera rotation direction and a rotation angle.
When a user watches the three-dimensional space of a room, the virtual camera can be rotated to watch the room at different angles, so that the virtual camera is rotated based on a camera rotation instruction of the user to obtain a current display picture of the three-dimensional space of the room, and after the virtual camera is rotated to obtain the current display picture of the three-dimensional space of the room, in order to avoid disorder of display of the marked line, the marked line displayed before the virtual camera is rotated is removed from the current display picture, so that the marked line corresponding to the current corner point in the current display picture can be clearly displayed.
And 103, acquiring the space size corresponding to the current corner point, displaying the marking corresponding to the current corner point in the current display interface, and marking the space size on the marking.
The space size corresponding to one corner point may be three sizes arranged clockwise, that is, the size between the current corner point and the corner point of the adjacent previous wall surface, the size between the current corner point and the vertex located on the upper side of the current corner point, that is, the room height, and the size between the current corner point and the vertex located on the right side of the current corner point. The marked line refers to finding the upper left vertex and the lower right vertex of the wall surface where the current corner point is located according to the position of the current corner point, namely the vertexes located on the upper side and the right side of the current corner point and the corner point of the adjacent previous wall surface, connecting the corner point of the adjacent previous wall surface with the current corner point, connecting the current corner point with the vertex on the upper side of the current corner point, connecting the current corner point with the vertex on the right side of the current corner point, and marking the size on the connecting line.
When the current corner point is not shielded by the wall surface, the marking line corresponding to the current corner point is displayed in the current display picture, the space size corresponding to the current corner point is obtained at the moment, the corner point of the previous wall surface adjacent to the current corner point, the vertex of the upper side of the current corner point and the vertex of the right side of the current corner point are identified, the current corner point and the wall corner point of the previous wall surface adjacent to the current corner point, the vertex of the upper side of the current corner point and the vertex of the right side of the current corner point are connected, the space size is marked on the connection line, the marking line corresponding to the current corner point is obtained, and the marking line corresponding to the current corner point is displayed in the current display picture.
In an embodiment of the present invention, the obtaining a spatial dimension corresponding to the current corner point, displaying a reticle corresponding to the current corner point in a current display screen, and marking the spatial dimension on the reticle, includes:
acquiring the size between the current corner point and the corner point of the adjacent previous wall surface as a first size, acquiring the size between the current corner point and the vertex positioned on the upper side of the current corner point as a second size, and acquiring the size between the vertex positioned on the same wall surface and the same horizontal plane as the current corner point and the current corner point as a third size;
and displaying a first marking between the current corner point and the corner point of the adjacent previous wall in the current display picture, displaying the first size on the first marking, displaying a second marking between the current corner point and the vertex positioned on the upper side of the current corner point in the current display picture, displaying the second size on the second marking, displaying a third marking between the vertex positioned on the same wall surface and the same horizontal plane with the current corner point and the current corner point in the current display picture, and displaying the third size on the third marking.
When the space size corresponding to the current corner point is obtained, the first size, the second size and the third size are obtained, then marked lines corresponding to the first size, the second size and the third size are respectively drawn in a current display picture, and the corresponding sizes are displayed on the marked lines.
And 104, canceling the display of the marked line corresponding to the current wall corner point in the current display interface.
When the current wall corner point is shielded by the wall surface, the marking corresponding to the current wall corner point is cancelled and displayed in the current display picture, namely, the marking corresponding to the current wall corner point is not displayed any more, so that the marking of the current wall corner point can be prevented from being displayed on the shielding wall surface.
The method for displaying the reticle in the three-dimensional space provided by this embodiment determines the current position of the virtual camera corresponding to the current display frame in the three-dimensional space of the room, determines the current wall corner in the current view, determines whether the current wall corner is blocked by the wall surface according to the current position, obtains the space size corresponding to the current wall corner when the current wall corner is not blocked by the wall surface, displays the reticle corresponding to the current wall corner in the current display frame, marks the space size on the reticle, cancels the reticle corresponding to the current wall corner in the current display frame when the current wall corner is blocked by the wall surface, displays the reticle corresponding to the current wall corner only when the current wall corner is not blocked by the wall surface because the corresponding reticle is not displayed when the current wall corner is blocked by the wall surface, so that the displayed reticle can be attached to the corresponding wall surface, the accuracy of marking position show is improved, user experience is promoted.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Fig. 5 is a block diagram illustrating a reticle displaying apparatus for a three-dimensional space according to an embodiment of the present invention, and as shown in fig. 5, the reticle displaying apparatus for a three-dimensional space may include:
a wall corner point determining module 501, configured to determine, in a current display picture in a three-dimensional space of a room, a current position of a virtual camera in the three-dimensional space of the room corresponding to the current display picture, and determine a current wall corner point in a current view;
a judging module 502, configured to judge whether the current wall corner point is covered by a wall surface according to the current position;
the marking processing module 503 is configured to, when the current corner point is not covered by a wall surface, obtain a spatial dimension corresponding to the current corner point, display a marking corresponding to the current corner point in a current display picture, and mark the spatial dimension on the marking; and when the current wall corner point is shielded by the wall surface, canceling to display the marked line corresponding to the current wall corner point in the current display picture.
Optionally, the determining module includes:
the projection unit is used for determining a line segment formed by the current position and the current corner point and projecting the line segment onto the ground of the three-dimensional space of the room to obtain a projected line segment;
the line segment determining unit is used for determining line segments formed by two wall corner points on the same wall surface in the three-dimensional space of the room;
the intersection point number determining unit is used for determining the number of intersection points between line segments formed by the projection line segments and the wall corner points on the same wall surface in pairs;
the judgment result determining module is used for determining that the current wall corner point is shielded by the wall surface if the number is greater than or equal to a preset number threshold; and if the number is smaller than a preset number threshold value, determining that the current wall corner point is not shielded by the wall surface.
Optionally, the intersection number determining unit is specifically configured to:
respectively judging whether two end points of the projection line segment are the same as the wall corner points, if so, determining that the projection line segment and a line segment taking the same wall corner point as an end point have an intersection point as a first intersection point;
respectively judging whether two end points of the projection line segment are positioned on two sides of a straight line formed by the two corner points positioned on the same wall surface and whether the two corner points positioned on the same wall surface are positioned on two sides of the straight line formed by the two corner points positioned on the same wall surface, if so, determining that the projection line segment and a line segment formed by the two corner points positioned on the same wall surface have an intersection point, and taking the intersection point as a second intersection point; wherein, two wall corner points on the same wall surface are wall corner points outside the first intersection point in the room;
and counting the number of the first intersection points and the second intersection points to obtain the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface.
Optionally, the preset number threshold is 2.
Optionally, the wall corner point determining module includes:
the spatial coordinate determination unit is used for determining the spatial coordinate range in the current sight and acquiring the spatial coordinates of the corner points in the room;
and the wall corner point determining unit is used for taking the wall corner point of which the space coordinate is in the space coordinate range as the current wall corner point in the current doorway.
Optionally, the reticle processing module includes:
a size obtaining unit, configured to obtain a size between the current corner point and a corner point of an adjacent previous wall surface, obtain, as a first size, a size between the current corner point and a vertex located on an upper side of the current corner point, obtain, as a second size, a size between a vertex located on the same wall surface and on the same horizontal plane as the current corner point and the current corner point, and obtain, as a third size, a size between the current corner point and the vertex located on the same horizontal plane as the current corner point;
and the marking display unit is used for displaying a first marking between the current corner point and the corner point of the adjacent previous wall in the current display picture, displaying the first size on the first marking, displaying a second marking between the current corner point and the vertex positioned on the upper side of the current corner point in the current display picture, displaying the second size on the second marking, displaying a third marking between the vertex positioned on the same wall surface and the same horizontal plane with the current corner point and the current corner point in the current display picture, and displaying the third size on the third marking.
Optionally, the apparatus further comprises:
the camera rotating module is used for rotating the virtual camera based on a camera rotating instruction of a user to obtain a current display picture of a three-dimensional space of a room;
and the marking removing module is used for removing the marking displayed before the virtual camera rotates.
The three-dimensional space marking display device provided by this embodiment determines, in a current display picture of a room three-dimensional space, a current position of a virtual camera in the room three-dimensional space corresponding to the current display picture, determines a current wall corner in the current view, determines whether the current wall corner is blocked by a wall surface according to the current position, acquires a space size corresponding to the current wall corner when the current wall corner is not blocked by the wall surface, displays a marking corresponding to the current wall corner in the current display picture, and marks the space size on the marking, cancels the display of the marking corresponding to the current wall corner in the current display picture when the current wall corner is blocked by the wall surface, displays the marking only when the current wall corner is not blocked by the wall surface because the corresponding marking is not displayed when the current wall corner is blocked by the wall surface, so that the displayed marking can be attached to the corresponding wall surface, the accuracy of marking position show is improved, user experience is promoted.
Fig. 6 is a block diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 6, the electronic device 600 may include one or more processors 601 and one or more memories 602 coupled to the processors 601. The electronic device 600 may also include an input interface 603 and an output interface 604 for communicating with another apparatus or system. Program code executed by the CPU of the processor 601 may be stored in the memory 602.
The processor 601 in the electronic device 600 calls the program code stored in the memory 602 to perform the reticle presentation method of the three-dimensional space in the above-described embodiment.
The above elements in the above electronic device may be connected to each other by a bus, such as one of a data bus, an address bus, a control bus, an expansion bus, and a local bus, or any combination thereof.
There is also provided, in accordance with an embodiment of the present invention, a computer-readable storage medium having a computer program stored thereon, where the storage medium may be a Read-Only Memory (ROM) or a Read-write medium, such as a hard disk or a flash Memory. The computer program, when executed by a processor, implements the reticle presentation method of the three-dimensional space of the foregoing embodiments.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The three-dimensional space reticle display method, the three-dimensional space reticle display device, the electronic device and the storage medium provided by the invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A three-dimensional space reticle display method is characterized by comprising the following steps:
determining the current position of a virtual camera corresponding to a current display picture in a three-dimensional space of a room in the current display picture of the three-dimensional space of the room, and determining a current wall corner point in a current view;
judging whether the current wall corner point is shielded by the wall surface or not according to the current position;
when the current wall corner point is not shielded by the wall surface, acquiring the space size corresponding to the current wall corner point, displaying the marking line corresponding to the current wall corner point in a current display picture, and marking the space size on the marking line; when the current wall corner point is shielded by the wall surface, canceling to display a marking line corresponding to the current wall corner point in a current display picture;
wherein, according to the current position, judge whether the current wall corner is sheltered from by the wall, include:
determining a line segment formed by the current position and the current corner point, and projecting the line segment onto the ground of the room three-dimensional space to obtain a projected line segment;
determining line segments formed by every two corner points of the same wall surface in the three-dimensional space of the room;
determining the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface;
if the number is larger than or equal to a preset number threshold value, determining that the current wall corner point is shielded by the wall surface; and if the number is smaller than a preset number threshold value, determining that the current wall corner point is not shielded by the wall surface, wherein the preset number threshold value is 2.
2. The method of claim 1, wherein the determining the number of intersection points between the projection line segment and the line segment formed by two corner points on the same wall surface comprises:
respectively judging whether two end points of the projection line segment are the same as the wall corner points, if so, determining that the projection line segment and a line segment taking the same wall corner point as an end point have an intersection point as a first intersection point;
respectively judging whether two end points of the projection line segment are positioned on two sides of a straight line formed by the two corner points positioned on the same wall surface and whether the two corner points positioned on the same wall surface are positioned on two sides of the straight line formed by the two corner points positioned on the same wall surface, if so, determining that the projection line segment and a line segment formed by the two corner points positioned on the same wall surface have an intersection point, and taking the intersection point as a second intersection point; wherein, two wall corner points on the same wall surface are wall corner points outside the first intersection point in the room;
and counting the number of the first intersection points and the second intersection points to obtain the number of intersection points between the projection line segments and line segments formed by every two corner points on the same wall surface.
3. The method of any of claims 1-2, wherein determining a current corner point within the current view comprises:
determining the space coordinate range in the current sight and obtaining the space coordinates of the corner points in the room;
and taking the corner point of the space coordinate in the space coordinate range as the current corner point in the current view.
4. The method according to any one of claims 1-2, wherein the obtaining the spatial dimension corresponding to the current corner point, displaying the reticle corresponding to the current corner point in the current display screen, and marking the spatial dimension on the reticle comprises:
acquiring the size between the current corner point and the corner point of the adjacent previous wall surface as a first size, acquiring the size between the current corner point and the vertex positioned on the upper side of the current corner point as a second size, and acquiring the size between the vertex positioned on the same wall surface and the same horizontal plane as the current corner point and the current corner point as a third size;
and displaying a first marking between the current corner point and the corner point of the adjacent previous wall in the current display picture, displaying the first size on the first marking, displaying a second marking between the current corner point and the vertex positioned on the upper side of the current corner point in the current display picture, displaying the second size on the second marking, displaying a third marking between the vertex positioned on the same wall surface and the same horizontal plane with the current corner point and the current corner point in the current display picture, and displaying the third size on the third marking.
5. The method according to any one of claims 1-2, wherein before said determining whether the current wall corner point is occluded by a wall surface according to the current position, further comprising:
rotating the virtual camera based on a camera rotation instruction of a user to obtain a current display picture of a three-dimensional space of a room;
and clearing the marked lines displayed before the virtual camera rotates.
6. A three-dimensional space reticle display apparatus, comprising:
the wall corner point determining module is used for determining the current position of a virtual camera corresponding to a current display picture in a three-dimensional space of a room in the three-dimensional space of the room and determining the current wall corner point in the current view;
the judging module is used for judging whether the current wall corner point is shielded by the wall surface according to the current position;
the marking processing module is used for acquiring the space size corresponding to the current wall corner point when the current wall corner point is not shielded by a wall surface, displaying the marking corresponding to the current wall corner point in a current display picture, and marking the space size on the marking; when the current wall corner point is shielded by the wall surface, canceling to display a marking line corresponding to the current wall corner point in a current display picture;
wherein, the judging module comprises:
the projection unit is used for determining a line segment formed by the current position and the current corner point and projecting the line segment onto the ground of the three-dimensional space of the room to obtain a projected line segment;
the line segment determining unit is used for determining line segments formed by two wall corner points on the same wall surface in the three-dimensional space of the room;
the intersection point number determining unit is used for determining the number of intersection points between line segments formed by the projection line segments and the wall corner points on the same wall surface in pairs;
the judgment result determining module is used for determining that the current wall corner point is shielded by the wall surface if the number is greater than or equal to a preset number threshold; if the number is smaller than a preset number threshold value, determining that the current wall corner point is not shielded by the wall surface; the preset number threshold is 2.
7. An electronic device, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing a reticle presentation method of a three-dimensional space according to any one of claims 1-5.
8. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements the reticle presentation method for a three-dimensional space according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648119.5A CN111968245B (en) | 2020-07-07 | 2020-07-07 | Three-dimensional space marking line display method and device, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648119.5A CN111968245B (en) | 2020-07-07 | 2020-07-07 | Three-dimensional space marking line display method and device, electronic equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111968245A CN111968245A (en) | 2020-11-20 |
| CN111968245B true CN111968245B (en) | 2022-03-01 |
Family
ID=73361286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010648119.5A Active CN111968245B (en) | 2020-07-07 | 2020-07-07 | Three-dimensional space marking line display method and device, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111968245B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114693893B (en) * | 2022-03-28 | 2023-06-30 | 北京城市网邻信息技术有限公司 | Data processing method and device, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201714137A (en) * | 2015-10-12 | 2017-04-16 | 李曉真 | Method for browsing house interactively in 3D virtual reality and system for the same |
| CN108765583A (en) * | 2018-05-30 | 2018-11-06 | 链家网（北京）科技有限公司 | A kind of method and device of the size marking of spacial flex in virtual three-dimensional space |
| CN109218524A (en) * | 2018-08-27 | 2019-01-15 | 山东大唐宅配家居有限公司 | The cell phone application and method that house measurement generates floor plan are carried out based on video recording of taking pictures |
| CN110322552A (en) * | 2019-07-09 | 2019-10-11 | 广州市云家居云科技有限公司 | A kind of software systems of the in-time generatin three-dimensional house type based on laser ranging |
| CN111145352A (en) * | 2019-12-20 | 2020-05-12 | 北京乐新创展科技有限公司 | House live-action picture display method and device, terminal equipment and storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952338B (en) * | 2017-03-14 | 2020-08-14 | 网易（杭州）网络有限公司 | Three-dimensional reconstruction method and system based on deep learning and readable storage medium |
| CN111127655B (en) * | 2019-12-18 | 2021-10-12 | 北京城市网邻信息技术有限公司 | House layout drawing construction method and device, and storage medium |
-
2020
- 2020-07-07 CN CN202010648119.5A patent/CN111968245B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201714137A (en) * | 2015-10-12 | 2017-04-16 | 李曉真 | Method for browsing house interactively in 3D virtual reality and system for the same |
| CN108765583A (en) * | 2018-05-30 | 2018-11-06 | 链家网（北京）科技有限公司 | A kind of method and device of the size marking of spacial flex in virtual three-dimensional space |
| CN109218524A (en) * | 2018-08-27 | 2019-01-15 | 山东大唐宅配家居有限公司 | The cell phone application and method that house measurement generates floor plan are carried out based on video recording of taking pictures |
| CN110322552A (en) * | 2019-07-09 | 2019-10-11 | 广州市云家居云科技有限公司 | A kind of software systems of the in-time generatin three-dimensional house type based on laser ranging |
| CN111145352A (en) * | 2019-12-20 | 2020-05-12 | 北京乐新创展科技有限公司 | House live-action picture display method and device, terminal equipment and storage medium |
Non-Patent Citations (2)
| Title |
|---|
| Application of redirected walking in room-scale VR;Eike Langbehn 等;《IEEE》;20170406;449-450 * |
| 基于UE4的移动端虚拟样板间;踪琳 等;《电子质量》;20171231;50-53 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111968245A (en) | 2020-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10970915B2 (en) | Virtual viewpoint setting apparatus that sets a virtual viewpoint according to a determined common image capturing area of a plurality of image capturing apparatuses, and related setting method and storage medium | |
| JP5740884B2 (en) | AR navigation for repeated shooting and system, method and program for difference extraction | |
| CN110191326B (en) | Projection system resolution expansion method and device and projection system | |
| US20110110557A1 (en) | Geo-locating an Object from Images or Videos | |
| JPH05282429A (en) | Picture display device | |
| US9691175B2 (en) | 3-D models as a navigable container for 2-D raster images | |
| CN114785996A (en) | Virtual reality parallax correction | |
| JP2008204458A (en) | Method and device for forming three-dimensional model from two-dimensional photographed video | |
| JP7073092B2 (en) | Image processing equipment, image processing methods and programs | |
| CN106570907B (en) | Camera calibration method and device | |
| US20210241435A1 (en) | Point cloud fusion method, electronic device, and computer storage medium | |
| CN112802208B (en) | Three-dimensional visualization method and device in terminal building | |
| CN111968246B (en) | Scene switching method and device, electronic equipment and storage medium | |
| US20180213215A1 (en) | Method and device for displaying a three-dimensional scene on display surface having an arbitrary non-planar shape | |
| CN111968245B (en) | Three-dimensional space marking line display method and device, electronic equipment and storage medium | |
| JP5461782B2 (en) | Camera image simulator program | |
| CN110691228A (en) | Three-dimensional transformation-based depth image noise marking method and device and storage medium | |
| JP2021051660A (en) | Method for specifying coordinate axis in three dimensional space and method for specifying plane | |
| JP2021152935A (en) | Information visualization system, information visualization method, and program | |
| CN113034347A (en) | Oblique photographic image processing method, device, processing equipment and storage medium | |
| CN107787507B (en) | Apparatus and method for obtaining a registration error map representing a level of sharpness of an image | |
| CN108536698B (en) | Web data three-dimensional display method and device | |
| CN113256811B (en) | Building modeling method, building modeling apparatus, and computer-readable storage medium | |
| CN111142825B (en) | Multi-screen visual field display method and system and electronic equipment | |
| JP6526605B2 (en) | Virtual camera image generating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |