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Specifying
polar coordinates
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Specifying
polar coordinates
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It is possible to use absolute or relative polar coordinates (distance and angle) to locate points when creating objects.
When using polar coordinates to specify a point, enter a distance and an angle separated by an angle bracket(<).
Angles increase counterclockwise and decrease clockwise. To specify a clockwise direction, enter a negative value for the angle. For example, entering 1<315< /SPAN> locates the same point asentering 1<-45.
Absolute polar coordinates are measured from the origin (0,0), meaning the intersection of the X and Y axes. It is advisable to use the absolute polar coordinates when the precise distance and angle coordinates of the point are known.
The following example shows two lines drawn with the absolute polar coordinates, using the default angle direction setting. Enter the following in the tooltip:
Command: LINE
From point: 0,0
To point: 4<120
To point: 5<30
Relative coordinates are based on the last point entered and are to be used when the location of a point in relation to the previous point is known.
To specify relative coordinates, precede the coordinate values with an @ sign. For example, entering @1<45 specifies a point at a distance of 1 unit from the last point specified at an angle of 45 degrees from the X axis.
The following example shows two lines drawn with relative polar coordinates. In each illustration, the line begins at the location labeled as the previous point.
Command: LINE
From point: @3<45
To point: @5<285
