Determination of Point Coordinates by Cross Sections

Determination of Column Coordinates by Cross Sections

CAD drafting Determination of Point Coordinates by Cross Sections 0 Ribbon: Monitoring > CAD software Determination of Point Coordinates by Cross Sections 1 Determination of Column Coordinates by Cross Sections

CAD drawing Determination of Point Coordinates by Cross Sections 2 Menu: Monitoring 3DScan > CAD drafting Determination of Point Coordinates by Cross Sections 3 Determination of Column Coordinates by Cross Sections

CAD software Determination of Point Coordinates by Cross Sections 4 Toolbar: Monitoring 3DScan > CAD drawing Determination of Point Coordinates by Cross Sections 5 Determination of Column Coordinates by Cross Sections

CAD drafting Determination of Point Coordinates by Cross Sections 6 Command line: PC_SECT_BY_PLANES

1. The drawing should mandatory contain planes corresponding to the columns location:

CAD software Determination of Point Coordinates by Cross Sections 7

2. Run the PC_SECT_BY_PLANES command.

3. Select the resulting rail axes (3D polylines) and planes with a frame in the drawing.

4. If the selected object is not a 3D polyline, a prompt will appear – Must be exactly 2 axes.

5. You need to indicate the coordinate system origin in the drawing. If you press ENTER, the origin of the coordinate system will be set to the first point of the first rail, but this will not affect the coordinate system orientation. The Z axis of the coordinate system is set to the current UCS. You can reset the UCS to the world pone, if the world Z axis is required. The X axis direction is set as the average of normals of the planes, but perpendicular to the Z axis.

6. The command line will display the measurement results in the form of a table:

N; Ay; Az; By; Bz

1; -2.3; 0.4; -5996.0; 7.9

2; -1.6; 2.0; -5991.2; 8.3

3; -4.2; 0.2; -5991.0; 6.1

4; -4.6; 0.1; -5984.2; 9.0

5; -2.6; -0.7; -5985.9; 5.2

6; -1.2; -0.5; -5989.4; 2.0

7; 6.3; 5.7; -5987.5; 6.5

8; 8.4; 9.7; -5986.3; 10.7

9; 12.7; 12.2; -5983.5; 9.0

Where N is the section number; Ay, Az are coordinates of the first rail along Y and Z; By, Bz are coordinates of the second rail along Y and Z.

NOTE: While the command is running, the system sets the X axis of the coordinate system “roughly” along the normals of planes in the direction from the first point of the rail to the last. In fact, the new X axis is its projection onto a plane perpendicular to the Z axis. The Z axis is set exactly along the Z axis of the UCS, and the Y axis is set according to the “right-hand triple vector” rule. If you look along the X axis and Z up, then the first rail is on the left. That is why the second rail has a negative Y coordinate. (The Y axis, when viewed this way, is directed from right to left). It is assumed that both rails are headed in the same direction (the angle between the vectors from beginning to end < 90 degrees), otherwise the command will generate an error.