SU1339626A1 - Device for forming dynamic images from vector connectives - Google Patents

Abstract

The invention relates to automation, telemechanics and computer technology and is intended for. output of dynamically changing information. The purpose of the invention, an increase in the speed of the device, is achieved by introducing a second RAM block and a switch and the corresponding functional connections. The proposed device memorizes nodes of dynamically changing graphical objects made up of vector links. This makes it possible to return when building the image to the nodes, eliminating the computation and reproduction of invisible auxiliary vectors, the number of which reaches 40% of the total number of image vectors (for example, for dynamically changing digitized scales), which allows to display on the screen a large number of graphic objects . 3 il. (L with with CO 05 tC 05

Description

113

The invention relates to automation, telemechanics and computer technology and is intended to output dynamically changing information.

 The purpose of the invention is to improve the speed of the device,

Figure 1 shows the functional diagram of the device; figure 2 is a conventional example of the generated graphic objects; FIG. 3 shows an example of the operation of the control unit.

The device contains the first RAM block 1, the register 2, the adder 3, the permanent memory block 4, the first 5 and second 6 accumulators, the control block 7, the second RAM block 8 and the switch 9.

The device works as follows.

The control unit 7, built on the principle of a firmware automaton, generates sequences of micro-instructions interpreting commands (graphic operators) of the device. A micro-command is a set of signals necessary for controlling blocks 1-6, 8, and 9 of the device.

The standard operation cycle of the device consists of three successively performed operations: reading the current command from block 1 of the operative memory

a tee storing a display file (an imaging program); decryption of the operation code (generation of the firmware address); the execution of the firmware corresponding to the operation code of the current command.

The system of device commands contains the following graphical operators; the formation of the absolute XY coordinates of the vector points to the direction of the previous vector and the length of the vector; recording the parameters of the coordinate node (X, Y and the absolute angle of inclination to the screen axis X) in the operational memory block 8; reading the parameters of the node from block 8 to the accumulating adders (integrators) of coordinates and to the register of the absolute angle; loading absolute node parameters from. block 1 of the operative memory in the accumulating adders of coordinates and ret of the angle.

According to the algorithm, operation of block 7 begins with sampling from block 1 of the next command, receiving and decoding the operation code (KBP).

2

0

five

0

6

0

Each value of the CPC corresponds to the initial address of the microprogram (MP), under whose control the graphical operation specified in the command is realized.

In particular, the MP (T) corresponds to the CPC Generation vector. When executing this MP, block 7 entrusts a sequence of microinstructions (MK), which determine the microoperations of sampling the relative angle & ci of the vector, summing the DL with the current absolute value of the angle about, stored in register 2, and sampling from block 4 of the DC memory projections and The control unit vector of a given direction, i.e. cosine and sine of the angle (oi, + and about). In addition, the value of the length 1 of the vector is recorded in the counter, the input of u1-ha in block 7, after which the process of generating (calculating the coordinates of the points) of the vector is started. This process consists in a 1-fold calculation of the coordinates of a point by summing the projections of the unit vector with the current X, Y coordinates of the highlighted screen point stored in the output registers of accumulating adders 5 and 6, with a modification of the length counter and ending with zeroing of this counter, then in Register 2 fixes the new uglast value. Upon completion of the MP, a transition is made to the beginning (n) of the algorithm. MP (5) corresponds to the CPC Remembering a node in the stack, M1 (L) - KOP Sampling the node. from the stack (.З., block 8 has stacking organization and contains the stack pointer SP).

Thus, block 1 is the image regeneration memory, information in which is recorded from the central computer when the dynamic parameters of the image are changed or when it is completely replaced. Graphic objects are constructed in the coordinate system of the screen. The coordinate system is the upper right quadrant with the 0 beginning in the lower left corner of the screen. The absolute coordinates of the current position of the highlighted screen point are stored and formed by accumulating adders 5 and 6. When constructing graphical objects, it is considered that the starting point of the current vector is the end point of the previous vector. A continuous sequence of vectors forms a broken line-10.

31339626

line (bundle) or bundle. The beginning of the link is the position (FIG. 2, points A and B) given by positioning commands loaded from block 1 to accumulating adders 5 and 6 and register 2.

The structure of a dynamically changing graphic object is such that the sets of broken lines form nodes (Fig. 2, points 1-4), to which it is necessary to return from the end points of route G (points 4-8) when the polyline plays on the screen. In known devices, a return to a node is accomplished by constructing an auxiliary invisible vector from the end point to the node. For returns to the nodes without playing back redundant auxiliary vectors, the parameters of the nodes of the broken lines (coordinates X, Y and angle of inclination) are present at the outputs of adders 5 and 6 and register 2. By the command of the control unit 7 they are recorded in block 8 through the switch 9 For example, the parameters of the node of Fig. 2) are the coordinates X, Y and the angle oi,. If block 8 is a stack memory, then the parameters of the last used node are stored in the top stack.

To return to the previous node, its parameters are pushed out from the butt charger, the depth of which determines the maximum possible number of lines of the tree-like graphic object reflected on the screen.

In the proposed device, the memorization of nodes of dynamically changing graphic objects made up of links of vectors is carried out. This makes it possible to return to the construction of the image in the nodes, eliminating the computation and reproducing it to display on the screen a large number of graphic objects.

Ф орм ул а and 3 о б р е e and u

A device for generating dynamic images from vector links, which contains the first RAM block, whose information input is the device input, and the control input is connected to the output of the control unit, the output of the first RAM block is connected to

15 by the first information inputs of the adder and the register and the input of the control unit, the second information input of the adder is connected to the register output, the output of the adder is connected to the address of the permanent memory unit, the outputs of the first RAM unit and the permanent memory unit are connected to the first and second information inputs of the first and second 25 accumulating adders, respectively, the control inputs of which are connected to the output of the control unit, the third information input of the register is connected to the output of the adder, lichayuschees in that, for the purpose povsch1eni operating speed of the device, it comprises a second block of random access memory and a switch, whose output is connected to an information

35 by the input of the second RAM block, the control input of which is connected to the output of the control block connected to the control input of the switch, and the output to the second information input of the register and the third information inputs of the first and second accumulating adders, first, second and third the information inputs of the switch are connected by the ratio of invisible, auxiliary vectors, 45 with the outputs of the register j of the first, the number of which reaches 40% and the second accumulating sum of the total number of vectors - ditches, outputs of accumulative adders (for example, dynamically are the outputs of the device coordinate voltages.

variable digitizing scales) that

It displays a large number of graphic objects on the screen.

Ф орм ул а and 3 о б р е e and u

A device for generating dynamic images from vector links, which contains the first RAM block, whose information input is the device input, and the control input is connected to the output of the control unit, the output of the first RAM block is connected to

the first information inputs of the adder and register and the input of the control unit, the second information input of the adder is connected to the register output, the output of the adder is connected to the address input of the permanent memory unit, the outputs of the first RAM unit and the permanent memory unit are connected to the first and the second information inputs of the first and second accumulating adders, respectively, whose control inputs are connected to the output of the control unit, the third information input of the register is connected to the output of the adder, It is the fact that, in order to increase the speed of the device, it contains the second RAM block and the switch, the output of which is connected to the information

the second input of the main memory unit, the control input of which is connected to the output of the control unit connected to the control input of the switch and the output to the second information input of the register and the third information inputs of the first and second accumulating adders, first, second and third information input

Output

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Compiled by I. Zaginayko Editor 0. Head of Tehred M. Dvdzh - Proofreader V. But ha

Order 4228/42. Circulation 433Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

Claim A device for generating dynamic images from bundles of vectors, containing the first RAM block, the information input of which is the input of the device, and the control input is connected to the output of the control unit, the output of the first RAM block is connected to the first information inputs of the adder and register and the input of the control unit, the second the information input of the adder is connected to the output of the register, the output of the adder is connected to the address input of the read-only memory block, the outputs of the first block of random access memory and permanent memory locks are connected to the first and second information inputs of the first and second accumulating adders, respectively, the control inputs of which are connected to the output of the control unit, the third information input of the register is connected to the output of the adder, which is characterized by the fact that, in order to increase the speed of the device, it contains a second RAM block and a switch, the output of which is connected to the information input of the second RAM block, the control input of which is connected to the output of the control unit, with connected to the control input of the switch, and the output to the second information input of the register and the third information inputs of the first and second accumulating adders, the first, second and third information inputs of the switch are connected respectively to the outputs of the register _{t of the} first and second accumulating adders, the outputs of the accumulating adders are outputs of the coordinate voltage of the device. I 339626 Figure 1 Fi g. 2