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DynaPDF.DrawArc

This function draws an arc by using a start and end angle.

Component Version macOS Windows Linux Server iOS SDK
DynaPDF 3.1 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "DynaPDF.DrawArc"; PDF; PosX; PosY; Radius; StartAngle; EndAngle )   More

Parameters

Parameter Description Example
PDF The PDF reference returned from DynaPDF.New. $pdf
PosX X-Coordinate of the midpoint of the arc $x
PosY Y-Coordinate of the midpoint of the arc $y
Radius Radius of the arc. 50
StartAngle Start Angle. $StartAngle
EndAngle End Angle. $EndAngle

Result

Returns OK or error.

Description

This function draws an arc by using a start and end angle.
A full circle is drawn if the start and end angles are the same. The path is not closed, stroked or filled so that it will be invisible as long it is not stroked, filled or both (see DynaPDF.ClosePath, DynaPDF.StokePath for further information).
The current point is connected with the start point of the arc and then updated to end point of the arc, see example below.
The draw direction can be changed with the function DynaPDF.SetDrawDirection. The start and end angles are always measured counter clockwise independent of the drawing direction.

See also DrawArc function in DynaPDF manual.

Examples

Draw Arcs to make a pie chart:

Set Variable [ $r ; Value: MBS( "DynaPDF.SetStrokeColor"; $pdf; 0; 0; 0) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.SetLineWidth"; $pdf; 5) ]
#
Set Variable [ $r ; Value: MBS( "DynaPDF.SetFillColor"; $pdf; 0; 0; 0.8) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.MoveTo"; $pdf; 300; 300) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.DrawArc"; $pdf; 300; 300; 200; 20; 200 ) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.ClosePath"; $pdf; "fillStroke" ) ]
#
Set Variable [ $r ; Value: MBS( "DynaPDF.SetFillColor"; $pdf; 0; 0.8; 0) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.MoveTo"; $pdf; 300; 300) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.DrawArc"; $pdf; 300; 300; 200; 200; 300 ) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.ClosePath"; $pdf; "fillStroke" ) ]
#
Set Variable [ $r ; Value: MBS( "DynaPDF.SetFillColor"; $pdf; 0.8; 0; 0) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.MoveTo"; $pdf; 300; 300) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.DrawArc"; $pdf; 300; 300; 200; 300; 20 ) ]
Set Variable [ $r ; Value: MBS( "DynaPDF.ClosePath"; $pdf; "fillStroke" ) ]

See also

Blog Entries

This function checks for a license.

Created 18th August 2014, last changed 3th January 2021


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