point drawing bugfix, typo fix, added figure source

docs/homog2d_manual.md

@@ -1870,7 +1870,7 @@ The available functions are given in the table below:
 `setPointSize()`  |  1 int (pixels)  |  |
 `setThickness()`  |  1 int (pixels)  |  |
 `showPoints()`    | bool (default is `true`) | Draws the points for<br>Segment and Polyline types |
-`setFontSize()`   | int (size in pixels)     |  Only for `putText()`  |
+`setFontSize()`   | int (size in pixels)     | Only used for `drawText()`  |
 
 For Svg back-end only, the user my add some specific Svg attributes with `setAttribString()`.
 For example:

homog2d.hpp

@@ -671,6 +671,7 @@ class DrawParams
 	}
 	DrawParams& setPointSize( uint8_t ps )
 	{
+		_dpValues._pointSize = ps;
 		_dpValues._ptDelta = ps;
 		return *this;
 	}

misc/figures_src/src/drawparams_checking.cpp

@@ -0,0 +1,48 @@
+// this file is part of homog2d
+// used to build a figure that is included in manual
+// see makefile target doc_fig
+
+#include "fig_src.header"
+
+/// Used to check the drawing parameters for points
+/// \todo issue here, the size is not used for type PtStyle::Dot
+int main()
+{
+	img::DrawParams dp;
+//	dp.setThickness(1).showPoints().showIndex();
+	dp.setThickness(1).showPoints();
+	dp.setDefault();
+
+	img::Image<SvgImage> im1( 400,300 );
+	img::Image<cv::Mat>  im2( 400,300 );
+
+
+	dp.setColor( 250,0,0);
+	img::PtStyle newPointStyle = img::PtStyle::Plus;
+
+	int x0=30;
+	int y0=40;
+	int deltax=25;
+	int deltay=30;
+	Point2d pt( x0, 30 );
+
+	for( int j=0;j<5; j++ )
+	{
+		pt.set( x0, y0 );
+		int s = 3 + j*2;
+		im2.drawText( std::to_string(s), pt, DrawParams() ); /// \todo check why default arg not implemented !!
+		pt.translate(deltax,0 );
+		for( int i=0;i<=(int)img::PtStyle::Dot; i++ )
+		{
+//			std::cout << i << " color=" << dp.color() << " pt=" << pt << '\n';
+			pt.draw( im1, dp.setPointStyle( newPointStyle ).setPointSize(s) );
+			pt.draw( im2, dp.setPointStyle( newPointStyle ).setPointSize(s) );
+			newPointStyle = dp._dpValues.nextPointStyle();
+			pt.translate(0,deltay);
+		}
+		pt.translate( deltax, 0 );
+
+	}
+	im1.write( "drawparams_1.svg" );
+	im2.write( "drawparams_2.png" );
+}