paweld/lazarus
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/lazarus/lazarus.git synced 2025-08-18 19:59:31 +02:00
Code Issues Packages Projects Releases Wiki Activity

Docs: LazUtils/graphmath. Updates topic content.

Browse Source 
* Adds content to TBezier topic.
* Adds some missing short descriptions.
This commit is contained in:
dsiders 2022-08-25 15:38:43 +01:00
parent de87e3dfab
commit 9520b3a4b9
1 changed files with 54 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
docs/xml/lazutils/graphmath.xml
View File

@ -28,29 +28,57 @@ operations. This file is part of the <file>LazUtils</file> package.
<element name="TFloatPoint"> <element name="TFloatPoint">
<short> <short>
<var>TFloatPoint</var> - an extended precision record specifying the X and <var>TFloatPoint</var> is an extended precision record specifying the X and
Y coordinates of a point in a graphic environment. Y coordinates of a point in a graphic environment.
</short> </short>
<descr/> <descr/>
<seealso/> <seealso/>
</element> </element>
<element name="TFloatPoint.X"> <element name="TFloatPoint.X">
<short/> <short>
Horizontal position for the coordinate.
</short>
</element> </element>
<element name="TFloatPoint.Y"> <element name="TFloatPoint.Y">
<short/> <short>
Vertical position for the coordinate.
</short>
</element> </element>
<element name="TBezier"> <element name="TBezier">
<short/> <short>
<descr/> Array type used to store the coordinates for Bezier control points as
<seealso/> floating point values.
</short>
<descr>
<p>
<var>TBezier</var> allows up to 4 coordinates to be specified which represent
the control points for the parametric curve. Each coordinate is implemented
using the TFloatPoint type, and stored as elements in the array.
</p>
<p>
TBezier is the type returned by the Bezier function. The type is passed as an
argument to routines like: Arc2Bezier, Bezier2Polyline, BezierMidPoint, and
SplitBezier.
</p>
</descr>
<seealso>
<link id="Bezier"/>
<link id="Arc2Bezier"/>
<link id="Bezier2Polyline"/>
<link id="BezierMidPoint"/>
<link id="SplitBezier"/>
</seealso>
</element> </element>
<element name="PPoint"> <element name="PPoint">
<short/> <short>
Pointer to the TPoint type.
</short>
<descr/> <descr/>
<seealso/> <seealso>
<link id="#rtl.classes.TPoint">TPoint</link>
</seealso>
</element> </element>
<element name="Angles2Coords"> <element name="Angles2Coords">
@ -163,25 +191,37 @@ o&apos;clock position.
<element name="Bezier"> <element name="Bezier">
<short> <short>
<var>Bezier</var> - function to get a Bezier figure from the given points. Gets a TBezier instance representing the specified Bezier control points.
</short> </short>
<descr/> <descr/>
<seealso/> <seealso/>
</element> </element>
<element name="Bezier.Result"> <element name="Bezier.Result">
<short/> <short>
TBezier instance with the values in C1, C2, C3, and C4.
</short>
</element> </element>
<element name="Bezier.C1"> <element name="Bezier.C1">
<short/> <short>
Control point on the parametric curve. C1 is an endpoint.
</short>
</element> </element>
<element name="Bezier.C2"> <element name="Bezier.C2">
<short/> <short>
Control point on the parametric curve. C2 is a directional control point for
a Quadratic or Cubic Bezier.
</short>
</element> </element>
<element name="Bezier.C3"> <element name="Bezier.C3">
<short/> <short>
Control point on the parametric curve. C3 is a directional control point for
a Cubic Bezier.
</short>
</element> </element>
<element name="Bezier.C4"> <element name="Bezier.C4">
<short/> <short>
Control point on the parametric curve. C4 is an endpoint.
</short>
</element> </element>
<element name="Bezier2Polyline"> <element name="Bezier2Polyline">