Find a point based on this snap mode and point.
This function uses the specified object snap mode(s) to determine the resulting point, given a 3-D point.
The argument point is a 3-D point, which is the center of a square area defined by the system variable APERTURE. Sds_osnap looks for the object selected by this point.
The mode argument is the snap mode or modes used to find the resulting point :
Mode | Meaning |
---|---|
"nea" | NEArest |
"end" | ENDpoint |
"mid" | MIDpoint |
"cen" | CENter |
"per" | PERpendicular |
"tan" | TANgent |
"qua" | QUAdrant |
"ins" | INSertion |
"po" | POint |
"int" | INTersection (3D intersection) |
"pla" | PLAnview (2D intersection) |
"vis" | VISible (apparent intersection) |
"off" | Off |
NOTE Separate multiple object snap modes with a comma, such as: "tan, qua, cen".
The argument answer is the 3-D point determined by the original point and the snap mode, such as the end of a line.
This function returns RTNORM (when it finds a point); otherwise, it returns an error code.
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Programming Overview of SDS™ (Solutions Development System™)