inPolygon: Difference between revisions

From Bohemia Interactive Community
Jump to navigation Jump to search
m (Text replacement - "\|( *\[\[[a-zA-Z]+\]\]) * \|x1=" to "\|r1=$1 \|x1=")
mNo edit summary
 
(14 intermediate revisions by 3 users not shown)
Line 1: Line 1:
{{RV|type=command
{{RV|type=command


| arma3
|game1= arma3
|version1= 1.54


|1.54
|gr1= Positions
 
|descr= Checks whether position is inside given polygon. The polygon is only checked in 2 dimensions, i.e. the value of Z is ignored.
 
|s1= position [[inPolygon]] polygon
 
|p1= position: [[Array]] format [[Position#Introduction|Position3D]], {{GVI|arma3|2.14|size= 0.75}} [[Object]] or [[Group]]
 
|p2= polygon: [[Array]] of [[Position#Introduction|Position3D]] - positions in format: [position1, position2...., positionN]
 
|r1= [[Boolean]]
 
|x1= <sqf>private _isInside = [100, 100, 0] inPolygon [[0, 0, 0], [1000, 1000, 0], [1000, 0, 0]];</sqf>


|gr1= Positions
|x2= <sqf>
private _markerName = "_USER_DEFINED #0/0/1";


| Checks whether position is inside given polygon
private _xy2DPositions = markerPolyline _markerName;
private _positions = [];


| position '''inPolygon''' polygon
// let's convert these x,y coordinates to "normal" position arrays
|p1= position: [[Array]] - format [[Position3D]]
for "_i" from 0 to count _xy2DPositions - 1 step 2 do
|p2= polygon: [[Array]] - array of [[Position3D]] positions in format: [position1, position2...., positionN]
{
_positions pushBack [_xy2DPositions select _i, _xy2DPositions select (_i + 1), 0];
};


\|r1= [[Boolean]]
player inPolygon _positions; // true if in the drawn shape, false if not
</sqf>


\|x1= <code>_isInside = [100,100,0] [[inPolygon]] [[0,0,0],[1000,1000,0],[1000,0,0]];</code>
|seealso= [[in]] [[inArea]] [[drawPolygon]]
|seealso= [[in]], [[inArea]], [[drawPolygon]]
}}
}}

Latest revision as of 11:55, 28 September 2023

Hover & click on the images for description

Description

Description:
Checks whether position is inside given polygon. The polygon is only checked in 2 dimensions, i.e. the value of Z is ignored.
Groups:
Positions

Syntax

Syntax:
position inPolygon polygon
Parameters:
position: Array format Position3D, Arma 3 logo black.png2.14 Object or Group
polygon: Array of Position3D - positions in format: [position1, position2...., positionN]
Return Value:
Boolean

Examples

Example 1:
private _isInside = [100, 100, 0] inPolygon [[0, 0, 0], [1000, 1000, 0], [1000, 0, 0]];
Example 2:
private _markerName = "_USER_DEFINED #0/0/1"; private _xy2DPositions = markerPolyline _markerName; private _positions = []; // let's convert these x,y coordinates to "normal" position arrays for "_i" from 0 to count _xy2DPositions - 1 step 2 do { _positions pushBack [_xy2DPositions select _i, _xy2DPositions select (_i + 1), 0]; }; player inPolygon _positions; // true if in the drawn shape, false if not

Additional Information

See also:
in inArea drawPolygon

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