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Using xyz point filters


Point filters provide a method of locating a point in a drawing relative to another point without specifying the entire coordinate. Using a point filter, you can enter partial coordinates, and then the program prompts you for the remaining coordinate

information. To use xyz point filters, respond to the prompt for a coordinate with a

filter in the following form:




where coordinate is one or more of the letters x, y, and z. The program then prompts

you for the filtered coordinate(s). For example, if you type .xy, the program prompts

you to select a point whose xy-coordinate you want, and then prompts you for the zcoordinate.


The filters .x, .y, .z, .xy, .xz, and .yz are all valid filters.


Using point filters in two dimensions

You can use point filters when you work in two dimensions to locate points in relation

to existing entities. For example, to draw a circle centered in a rectangle, start the

Circle command, and then respond to the prompts as follows:


- 2Point • 3Point • RadTanTan • Arc • Multiple • <Center of circle>: .y

- Select Y of: mid

- Snap to midpoint of: (select the left side of the rectangle)

- Still need XZ of: mid

- Snap to midpoint of: (select top of the rectangle)

- Diameter • <Radius>: (specify radius of circle)


Using point filters in three dimensions

You can use point filters when you work in three-dimensional space to locate points in two dimensions and then specify the z-coordinate as the elevation above the xy plane. For example, to begin drawing a line from a point with a z-coordinate 3 units above the center of a circle, insert the circle, and then start the Line command and respond to the prompts as follows:


- ENTER to use last point • Follow • <Start of line>: .xy

- Select XY of: cen

- Snap to centerpoint of: (select a point on the circle)

- Still need Z of: 3 (locates the starting point 3 units above the center of the circle)

- Length of line: (specify the length of the line)



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