imageDrawQuadraticCurve Code Examples and CFML Documentation

Argument Reference

name string
Required

The image on which this operation is performed.

x1 numeric
Required

The x coordinate of the start point of the quadratic curve segment.

y1 numeric
Required

The y coordinate of the start point of the quadratic curve segment.

ctrlx1 string
Required

The x coordinate of the first control point of the quadratic curve segment.

ctrly1 numeric
Required

The y coordinate of the first control point of the quadratic curve segment.

x2 numeric
Required

The x coordinate of the end point of the quadratic curve segment.

y2 numeric
Required

The y coordinate of the end point of the quadratic curve segment.

Examples

Sample code invoking the imageDrawQuadraticCurve function

Tag Syntax

This example shows how to draw a curved line.OK

<!--- Use the imageNew function to create a 400x400-pixel image. ---> 
 <cfset myImage=imageNew("",400,400)> 
 <!--- Turn on antialiasing to improve image quality. ---> 
 <cfset imageSetAntialiasing(myImage,"on")> 
 <!--- Set the drawing color to green. ---> 
 <cfset imageSetDrawingColor(myImage,"green")> 
 <!--- Draw a curved line on the image. ---> 
 <cfset imageDrawQuadraticCurve(myImage,120,320,5,15,380,280)> 
 <!--- Display the image in a browser. ---> 
 <cfimage source="#myImage#" action="writeToBrowser">

Using drawQuadraticCurve member function

CF 11+ Lucee 4.5+ Create a new image. With the new image draw a cubic curve, starting at top left (0,0) ending at bottom right (152,152) with 1 control point at the bottom left (0,152)

imgObj = imageNew("",152,152,"rgb","149c82");
imgObj.drawQuadraticCurve(0,0,0,152,152,152);
cfimage (action="writeToBrowser", source=imgObj);

imageDrawQuadraticCurve

Member Function Syntax

Argument Reference

name string Required

x1 numeric Required

y1 numeric Required

ctrlx1 string Required

ctrly1 numeric Required

x2 numeric Required

y2 numeric Required

Examples Add An Example Sample code invoking the imageDrawQuadraticCurve function