Difference between revisions of "bezierInterpolation"

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m (Text replacement - "_forEachIndex" to "_forEachIndex")
m (Some wiki formatting)
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{{RV|type=command
 
{{RV|type=command
  
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| arma3
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|game1= arma3
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|version1= 1.92
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|1.92
 
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|arg=
 
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|eff=
 
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|serverExec=
 
  
 
|gr1= Math
 
|gr1= Math
  
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| Gets interpolated value based on [https://en.wikipedia.org/wiki/Bézier_curve Bézier curve] with given control points (progress value is 0...1 for a curve that starts at pos0 and finishes at posN) <br>
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|descr= Gets interpolated value based on {{Wikipedia|Bézier_curve|Bézier curve}} with given control points (progress value is 0...1 for a curve that starts at pos0 and finishes at posN) <br>
 
[[Image:bezierInterpolation2.jpg|400px]]
 
[[Image:bezierInterpolation2.jpg|400px]]
  
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| progress [[bezierInterpolation]] <nowiki>[pos0, pos1,... posN]</nowiki>
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|s1= progress [[bezierInterpolation]] positions
  
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|p1=progress: [[Number]] - interpolation value
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|p1= progress: [[Number]] - interpolation value
  
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|p2=[pos0, pos1,... posN]: [[Array]]
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|p2= positions: [[Array]] of [[Array]]s in format [[Position#Introduction|Position3D]]
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|p3=pos: [[Array]] in format [[Position3D]]
 
  
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| [[Array]] - a single point position in format [[Position3D]] based on progress value
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|r1= [[Array]] - a single point position in format [[Position#Introduction|Position3D]] based on progress value
  
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|x1= Quick demonstration that spawns some spheres around player object:<code>[[for]] "_i" from 0 to 1 step 0.05 do {
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|x1= Quick demonstration that spawns some spheres around player object:
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[[createVehicle]] ["Sign_Sphere10cm_F",(_i [[bezierInterpolation]] [
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<sqf>
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[[player]] [[modelToWorld]] [0,0,0],
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for "_i" from 0 to 1 step 0.05 do {
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[[player]] [[modelToWorld]] [0,2,2],
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createVehicle ["Sign_Sphere10cm_F", (_i bezierInterpolation [
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[[player]] [[modelToWorld]] [2,0,2],
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player modelToWorld [0,0,0],
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[[player]] [[modelToWorld]] [0,0,4]
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player modelToWorld [0,2,2],
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]),[],0,"CAN_COLLIDE"];
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player modelToWorld [2,0,2],
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};</code>
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player modelToWorld [0,0,4]
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]), [], 0, "CAN_COLLIDE"];
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};
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</sqf>
  
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|x2= Create a map marker curve from 4 control points with overlap (progress is -0.5...1.5 instead of 0...1):<code>[[private]] _controlPoints = [[100,-90],[200,-30],[150,60],[100,90]] [[apply]] { [[player]] [[getRelPos]] [[Magic Variables#x|_x]] };
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|x2= Create a map marker curve from 4 control points with overlap (progress is -0.5...1.5 instead of 0...1):
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<sqf>
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private _controlPoints = [[100,-90], [200,-30], [150,60], [100,90]] apply { player getRelPos _x };
 
{
 
{
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[[private]] _marker = [[createMarkerLocal]] [<nowiki/>[[str]] [[Magic Variables#x|_x]], [[Magic Variables#x|_x]]];
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private _marker = createMarkerLocal [str _x, _x];
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_marker [[setMarkerTypeLocal]] "mil_objective";
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_marker setMarkerTypeLocal "mil_objective";
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_marker [[setMarkerTextLocal]] ("P" + [[str]] [[Magic Variables#forEachIndex|_forEachIndex]]);
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_marker setMarkerTextLocal ("P" + str _forEachIndex);
 
}
 
}
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[[forEach]] _controlPoints;
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forEach _controlPoints;
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[[for]] "_i" [[from]] -0.5 [[to]] 1.5 [[step]] 0.01 [[do]]
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for "_i" from -0.5 to 1.5 step 0.01 do
 
{
 
{
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[[private]] _marker = [[createMarkerLocal]] [<nowiki/>[[str]] _i, _i [[bezierInterpolation]] _controlPoints];
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private _marker = createMarkerLocal [str _i, _i bezierInterpolation _controlPoints];
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_marker [[setMarkerTypeLocal]] "mil_dot";
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_marker setMarkerTypeLocal "mil_dot";
 
};
 
};
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[[openMap]] [[true]];</code>
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openMap true;
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</sqf>
  
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|seealso= [[linearConversion]], [[vectorLinearConversion]]
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|seealso= [[linearConversion]] [[vectorLinearConversion]]
 
}}
 
}}
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<dl class="command_description">
 
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<!-- BEGIN Note Section -->
 
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<!-- For example:
 
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<dd class="notedate">Posted on Month Day, Year - Time (UTC)</dd>
 
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<dt class="note">[[User:User Name|User Name]]</dt>
 
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<dd class="note">This is an example note. It is true and verifiable, and contains a little code snippet.
 
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<code>[[if]] ([[Magic Variables#this|_this]] == anExample) [[then]] { [[hint]] "Leave it here for others to read"; };</code></dd>
 
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-->
 
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<!-- END Note Section -->
 
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</dl>
 
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{{GameCategory|arma3|Scripting Commands}}
 
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[[Category:Scripting Commands|{{uc:{{PAGENAME}}}}]]
 

Revision as of 20:03, 3 May 2022

Arma 3 logo black.png1.92
Hover & click on the images for description

Description

Description:
Gets interpolated value based on Bézier curve with given control points (progress value is 0...1 for a curve that starts at pos0 and finishes at posN)
bezierInterpolation2.jpg
Groups:
Math

Syntax

Syntax:
progress bezierInterpolation positions
Parameters:
progress: Number - interpolation value
positions: Array of Arrays in format Position3D
Return Value:
Array - a single point position in format Position3D based on progress value

Examples

Example 1:
Quick demonstration that spawns some spheres around player object:
for "_i" from 0 to 1 step 0.05 do { createVehicle ["Sign_Sphere10cm_F", (_i bezierInterpolation [ player modelToWorld [0,0,0], player modelToWorld [0,2,2], player modelToWorld [2,0,2], player modelToWorld [0,0,4] ]), [], 0, "CAN_COLLIDE"]; };
Example 2:
Create a map marker curve from 4 control points with overlap (progress is -0.5...1.5 instead of 0...1):
private _controlPoints = [[100,-90], [200,-30], [150,60], [100,90]] apply { player getRelPos _x }; { private _marker = createMarkerLocal [str _x, _x]; _marker setMarkerTypeLocal "mil_objective"; _marker setMarkerTextLocal ("P" + str _forEachIndex); } forEach _controlPoints; for "_i" from -0.5 to 1.5 step 0.01 do { private _marker = createMarkerLocal [str _i, _i bezierInterpolation _controlPoints]; _marker setMarkerTypeLocal "mil_dot"; }; openMap true;

Additional Information

See also:
linearConversion vectorLinearConversion

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
Retrieved from "https://community.bistudio.com/wiki?title=bezierInterpolation&oldid=309178"