| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=real64), | intent(in) | :: | xu |
The x-coordinate of the point whose position relative to the directed line is to be determined. |
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| real(kind=real64), | intent(in) | :: | yu |
The y-coordinate of the point whose position relative to the directed line is to be determined. |
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| real(kind=real64), | intent(in) | :: | xv1 |
The x-coordinate of the first point that defines the base line. |
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| real(kind=real64), | intent(in) | :: | yv1 |
The y-coordinate of the first point that defines the base line. |
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| real(kind=real64), | intent(in) | :: | xv2 |
The x-coordinate of the second point that defines the base line. |
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| real(kind=real64), | intent(in) | :: | yv2 |
The y-coordinate of the second point that defines the base line. |
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| real(kind=real64), | intent(in) | :: | dv |
The signed distance of the directed line from the directed base line through the points (XV1,YV1) and (XV2,YV2). DV is positive for a line to the left of the base line. |
+1, the point is to the right of the directed line; 0, the point is on the directed line; -1, the point is to the left of the directed line.
Determines if a point is left of, right of, or on a directed line.
The directed line is parallel to, and at a signed distance DV from a directed base line from (XV1,YV1) to (XV2,YV2).