CN110599584A

CN110599584A - Layered solid model creation method based on Dynamo and Revit

Info

Publication number: CN110599584A
Application number: CN201910697691.8A
Authority: CN
Inventors: 张柳柳; 申永刚
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2019-12-20
Anticipated expiration: 2039-07-30
Also published as: CN110599584B

Abstract

The invention discloses a layered solid model establishing method based on Dynamo and Revit, which adopts a modeling method of cutting a solid by a curved surface. The method comprises the following steps: s1, making each layer model interface data file; s2 generating interfaces of entity models of each layer in Dynamo according to the data files in S1; s3 obtaining boundary lines of the curved surfaces in S2 in Dynamo, and accordingly regenerating the whole closed edge line of each curved surface; s4 projecting the curved surface obtained in S3 to a plane with zero elevation or a plane parallel to the plane with zero elevation to obtain a plane closed curve; s5 generating a stretching body by the curve generated in S4 along the normal direction of the plane where the curve is located; s6, cutting the entity generated in S5 by the curved surface generated in S2 to obtain a layered entity model; s7 imports the Dynamo model generated in S6 into Revit in the form of a family by means of a springs.

Description

Layered solid model creation method based on Dynamo and Revit

Technical Field

The invention relates to a method for secondarily developing and creating a model by Revit, in particular to a method for creating a layered solid model based on Dynamo and Revit.

Background

At present, the BIM (Building Information model; abbreviation of English Building Information Modeling) technology in China is developed rapidly, and Modeling software is numerous, wherein Revit is the most common Modeling software. Based on the API opened by Revit, the programming language under the framework of C #, C + +, VB and the like can be used for secondary development, and the specific function of Revit in modeling in a specific field is increased. Visualization programs can also be written through a secondary development platform Dynamo of Revit, and the establishment of a more complex BIM model is realized in Revit.

The functional module of Revit can not solve the problem of layered entity modeling. In general, building components are built in Revit, a geological model is generated in Civil3d, and then the geological model generated in Civil3d is imported into Revit for integration, so that the defects that the geological model generated by Civil3d is not editable in Revit and cannot meet the requirement of modifying the model at any time are overcome.

Disclosure of Invention

The invention aims to provide a layered entity model establishing method based on Dynamo and Revit, which has high modeling efficiency, is convenient for subsequent modification of the model and has important significance for visualization of layered entities with irregular interfaces represented by geological models.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention discloses a method for creating a layered solid model based on Revit + dyanmo, which comprises the following steps:

s1: making each layer of model interface data files;

s2: generating interfaces of all layers of entity models in Dynamo according to the data file in S1;

s3: acquiring boundary lines of the boundary curved surfaces in the step S2 in Dynamo, and correspondingly regenerating the whole closed side lines of each boundary;

s4: projecting the closed side line obtained in the S3 to a plane with zero elevation or a plane parallel to the plane with zero elevation to obtain a closed curve in the plane;

s5: generating a stretching body along the normal direction of the plane of the curve by using the curve generated in S4;

s6: cutting the stretched body generated in the S5 by using the interface generated in the S2 to obtain a layered solid model;

s7: and (4) introducing the layered entity model generated in the S6 into Revit in a family form through a springs.

The invention has the following beneficial effects: the method is a dynamic modeling method based on Dynamo, real-time linkage change of the model shape can be realized through data modification, and the model change is rapid and efficient. After the layered entity model is established, Boolean operation can be performed with other models according to the requirements of actual use scenes.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an interface of a layered solid model;

FIG. 3 is a layered solid model generated by the method.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

As shown in fig. 1, the present embodiment is to create a geological model based on the inventive method, and includes the following steps:

s1: making each layer of model interface data file, wherein the data comprises: the plane position coordinates x and y of the probing hole and the elevation value of the geological formation layered interface are shown in the following table;

point number	x	y	Miscellaneous fill	Powdery clay	Medium sand	Gravel sand	Weakly weathered rock formations
								ZK1	270.2816	-29.7937	1.6	-11.8	-30.3	-54.8	-72.1
ZK2	294.9897	9.4822	1.5	-10.8	-33.7	-54.5	-73.3
								ZK3	281.6977	2.8856	1.5	-12.2	-33	-53.2	-71.1
ZK4	316.1435	-3.0451	4.7	-10.9	-35	-53.9	-70.2
								ZK5	310.8802	-9.483	2.6	-10.9	-31.4	-53.1	-71.9
ZK6	297.2805	-11.9805	1.7	-12.4	-31.5	-53.3	-70.9
								ZK7	287.8137	-9.7237	0	-10.5	-33.4	-50.1	-70.2
ZK8	277.365	10.116	1	-12.6	-31.3 -5	0.2	-72.9
								ZK9	271.0812	-0.2508	1.1	-11.7	-32.5	-51	-71.8
ZK10	271.2904	-9.6997	4.7	-11.6	-30.5	-53.5	-71.3
								ZK11	276.8047	-16.1168	1.9	-13	-32.2	-51.9	-72
ZK12	291.7921	-20.164	4.2	-10	-34.1	-52.3	-71
								ZK13	306.832	-20.4326	2.7	-11.5	-31.8	-52.5	-73.7
ZK14	279.1444	-27.7527	2.9	-13	31.4	-53.2 -70.	4
								ZK15	307.6991	8.5518	5	-11.4	-33	-50.4	-72.7
ZK16	267.7529	-17.0073	4.6	-11.8	-31	-50.6	-72.4
								ZK17	301.6211	-26.7717	4.4	-13.2	-32.7	-50.5	-73.9
ZK18	312.752	-26.719	1.9	-12.6	34.7	-52.7	-71.2
								ZK19	268.8916	7.5383	1.6	-10.4	-31.3	-50.7	-71.4
ZK20	305.3588	-0.4469	4.5	-10.2	-32.4	-54	-72.1
								ZK21	295.6692	-1.4977	0.2	-12.4	-32.3	-50.2	-73.7
ZK22	193.0831	76.5343	3.5	-14	-32.6	-53.3	-70
								ZK23	264.4302	72.4393	3.9	-12 -3	0.9	-52.4	-72.7
ZK24	257.4041	66.495	2.4	-14.1	-32	-51.2	-71.4
								ZK25	303.7099	48.6686	4	-14.9	-31.2	-50.5	-70.5
ZK26	300.7417	41.0493	0.3	-14.8	-34.8	-53	-71.6
								ZK27	176.0706	60.4332	0	-14.9	-34.9	-52.5	-71.6
ZK28	175.2466	-22.3605	4.2	-12.5	-33.8	-54.7	-71.9
								ZK29	188.3372	17.9764	3.6	-11.5	-31.5	-51.8	-73.5
ZK30	188.7344	-27.6696	3.2	-14.8	-31	-53.3	-71.9
								ZK31	196.7438	-29.0279	3.5	-12	-34.1	-52.3	-70.3
ZK32	208.5981	-31.766	3.4	-14.9	-33.3	-52	-72.6
								ZK33	216.0003	-35.6435	3.4	-13.4	-33.2	-51.6	-71.6
ZK34	223.1316	-39.585	3.2	-10.8	-32.9	-52.5	-70.7
								ZK35	234.0193	-37.538	2.5	-11.5	-34.6	-54.6	-70.3
ZK36	183.9399	-6.8416	4.7	-10.7	-33.5	-54.8	-72.2
								ZK37	239.5645	-31.5063	0.6	-12.8	-32	-53.4	-72.3
ZK38	260.7936	-22.9189	2.9	-10.2	-31.8	-50.6	-71.8
								ZK39	239.3612 -6.4	371	0	-13.8	-32.5	-52.7	-72.3
ZK40	261.4321	-0.3239	4.0	-12.2	-33.6	-51.6	-74
								ZK41	246.6629	57.8685	3	-14.2	-32.2	-50.3	-71.5
ZK42	237.1804	49.8983	4.8	-14.9	-34.2	-50.6	-73.7
								ZK43	227.7039	42.3675	3.6	-11.3	-33.5	-54.1	-70.9
ZK44	219.8476	37.6149	4.1	-10.1	-30	-53	-71.6
								ZK45	266.34	18.57 2	.1	-13.4	-30.6	-53.3	-73.8
ZK46	237.115	7.4052	1.6 -12	.4	-32.7	-53	-71.1
								ZK47	324.4493	-14.5626	3.1	-10.6	-33.9	-54.9	-72
ZK48	322.9987	-27.2278	0.1	-13.4	-33.1	-51.2	-72.8
								ZK49	306.8363	-42.8668	4.6	-11.9	-35	-54.6	-72.6

S2: generating interfaces of the entity models of the layers in Dynamo according to the data file in S1: generating points in Dynamo through point.bycodings nodes according to coordinate values in the data file, and then generating a terrain surface through the points by using a topograph.bypoints node, wherein the topograph.polysurface node converts the terrain surface into interfaces of each layer of geology in the Dynamo, as shown in fig. 2;

s3: boundary lines of the boundary surfaces in the step S2 are obtained in Dynamo, and accordingly, the whole closed edge line of each boundary is regenerated: using a node surface.PerimerCurves to extract a side line of an interface of any two layers of geology, and forming a closed curve by a plurality of terrain side lines through a PolyCurve.ByJoinedCurves node;

s4: projecting the closed side line obtained in the step S3 to a plane with zero elevation or a plane parallel to the plane with zero elevation to obtain a closed curve in the plane: projecting the node of Curve, PullOntoPlan to a plane Z equal to 0 or a plane parallel to the plane Z to obtain a terrain edge line in a horizontal plane;

s5: the stretched body is generated with the curve generated in S4 along the normal to the plane in which the curve lies: using solid ByLoft nodes to stretch a terrain boundary line in a horizontal plane into an entity, wherein for facilitating later operation, the elevation of the top of a stretched entity model is not lower than a data point with the maximum elevation, and the lowest point of the stretched entity model is not higher than a data point with the minimum elevation;

s6: and cutting the stretched body generated in the S5 by using the interface generated in the S2 to obtain the layered solid model: cutting the tensile solid model into a layered solid model by using interfaces of geology of each layer under the action of a user-defined node package geometry.

S7: importing the layered solid model generated in the step S6 into Revit in a form of a family through a springs. The cut layered solid model can be imported into Revit by self-defining a node package springs, family instance, bygeometry, and double-clicking the model of the corresponding layer in Revit to enter the editing state of the family, giving material to the layer geological model and replacing the original model, thereby obtaining the geological model, as shown in fig. 3.

The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.

Claims

1. A layered solid model creation method based on Dynamo and Revit is characterized by comprising the following steps:

s1: making each layer of model interface data files;

s3: acquiring boundary lines of the interfaces in the step S2 in Dynamo, and accordingly regenerating the whole closed edge line of each interface;

2. The Dynamo + Revit-based layered solid model creation method as claimed in claim 1, wherein the model in S1 is a geological model.

3. The Dynamo + Revit-based layered mockup creation method of claim 2, wherein in S1, the data in the data file comprises: the plane position coordinates x and y of the probe hole and the elevation value of the geological formation layered interface.

4. The Dynamo + Revit-based layered solid model creation method of claim 3, wherein S2 is as follows:

generating points in the Dynamo through point.

5. The Dynamo + Revit-based layered solid model creation method of claim 4, wherein S3 is as follows:

and (3) extracting edge lines of interfaces of any two layers of geology by using the surface.

6. The Dynamo + Revit-based layered mockup creation method of claim 5, wherein S4 is as follows:

a topographical line in the horizontal plane is obtained by projecting the cut.

7. The Dynamo + Revit-based layered mockup creation method of claim 6, wherein S5 is as follows:

and stretching a terrain boundary line in a horizontal plane into an entity by using solid ByLoft nodes, wherein the top elevation of the stretched entity model is not lower than the data point with the maximum elevation, and the lowest point of the stretched entity model is not higher than the data point with the minimum elevation.

8. The Dynamo + Revit-based layered mockup creation method of claim 7, wherein S6 is as follows:

the stretched solid model is cut into layered solid models by using interfaces of geology of each layer under the action of a user-defined node package geometry.

9. The Dynamo + Revit-based layered mockup creation method of claim 8, wherein S7 is as follows:

and (3) importing the cut layered entity model into Revit through a user-defined node package spring.