lineIntersects: Difference between revisions
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|gr1= Math - Geometry | |gr1= Math - Geometry | ||
|descr= Checks for object intersection with a virtual line between two positions. | |descr= Checks for object intersection with a virtual line between two positions. | ||
{{Feature|informative| | |||
* Does not work under water. | |||
* Max harcoded distance is 1000m. | |||
}} | |||
|s1= [[lineIntersects]] [begPos, endPos, objIgnore1, objIgnore2] | |||
|p1= begPos: [[PositionASL]] | |||
|p2= endPos: [[PositionASL]] | |||
| | |p3= objIgnore1: [[Object]] - (Optional, default [[objNull]]) object to ignore. When testing intersection from an object/unit/vehicle, pass that object here to prevent intersection inside of the object | ||
| | |p4= objIgnore2: [[Object]] - (Optional, default [[objNull]]) another object to ignore. When testing intersection of a line between two objects, pass the second object here to prevent intersection inside of it being reported | ||
|r1= [[Boolean]] - true if intersection | |r1= [[Boolean]] - [[true]] if an intersection happens with an object (not with terrain) | ||
|x1= <code>[[lineIntersects]] [<nowiki/>[[eyePos]] [[player]], [[aimPos]] chopper, [[player]], chopper]</code> | |x1= <code>[[private]] _hasStraightLineToChopper = [[lineIntersects]] [<nowiki/>[[eyePos]] [[player]], [[aimPos]] chopper, [[player]], chopper];</code> | ||
|seealso= [[lineIntersectsSurfaces]], [[intersect]], [[terrainIntersect]], [[terrainIntersectASL]], [[terrainIntersectAtASL]], [[lineIntersectsWith]], [[lineIntersectsObjs]], [[cursorObject]], [[cursorTarget]], [[checkVisibility]] | |seealso= [[lineIntersectsSurfaces]], [[intersect]], [[terrainIntersect]], [[terrainIntersectASL]], [[terrainIntersectAtASL]], [[lineIntersectsWith]], [[lineIntersectsObjs]], [[cursorObject]], [[cursorTarget]], [[checkVisibility]] | ||
}} | }} | ||
{{Note | |||
|user= Lou Montana | |||
|timestamp= 20120531104600 | |||
|text= Please note the difference: | |||
* [[terrainIntersect]] | |||
* [[terrainIntersectASL]] | |||
*[[terrainIntersect]] | * [[lineIntersects]] | ||
*[[terrainIntersectASL]] | * [[lineIntersectsWith]] | ||
*[[lineIntersects]] | * [[lineIntersectsObjs]] | ||
*[[lineIntersectsWith]] | * [[intersect]] | ||
*[[lineIntersectsObjs]] | }} | ||
*[[intersect]] | |||
Revision as of 10:35, 25 November 2021
Description
- Description:
- Checks for object intersection with a virtual line between two positions.
- Groups:
- Math - Geometry
Syntax
- Syntax:
- lineIntersects [begPos, endPos, objIgnore1, objIgnore2]
- Parameters:
- begPos: PositionASL
- endPos: PositionASL
- objIgnore1: Object - (Optional, default objNull) object to ignore. When testing intersection from an object/unit/vehicle, pass that object here to prevent intersection inside of the object
- objIgnore2: Object - (Optional, default objNull) another object to ignore. When testing intersection of a line between two objects, pass the second object here to prevent intersection inside of it being reported
- Return Value:
- Boolean - true if an intersection happens with an object (not with terrain)
Examples
- Example 1:
private _hasStraightLineToChopper = lineIntersects [eyePos player, aimPos chopper, player, chopper];
Additional Information
- See also:
- lineIntersectsSurfacesintersectterrainIntersectterrainIntersectASLterrainIntersectAtASLlineIntersectsWithlineIntersectsObjscursorObjectcursorTargetcheckVisibility
Notes
-
Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
- Posted on May 31, 2012 - 10:46 (UTC)
- Please note the difference: