Added osgText::Font::s/getGlyphInterval(int) and GlyphTexture::s/getGlyphInterval(int) and internal support for clmapping positions of glyph images an defined intervals, defaults to 1.

include/osgText/Font

@@ -122,6 +122,11 @@ public:
     void setGlyphImageMarginRatio(float margin);
     float getGlyphImageMarginRatio() const;
 
+    /** Set the interval that glyph positions are clamped to.
+      * Default interval is 1 texels.*/
+    void setGlyphInterval(int interval);
+    int getGlyphInterval() const;
+
 
     /** Set the size of texture to create to store the glyph images when rendering.
       * Note, this doesn't affect already created Texture Glhph's.*/
@@ -197,6 +202,7 @@ protected:
     FontResolution                  _fontSize;
     unsigned int                    _margin;
     float                           _marginRatio;
+    int                             _glyphInterval;
 
     unsigned int                    _textureWidthHint;
     unsigned int                    _textureHeightHint;

include/osgText/Glyph

@@ -260,6 +260,9 @@ public:
     void setGlyphImageMarginRatio(float margin) { _marginRatio = margin; }
     float getGlyphImageMarginRatio() const { return _marginRatio; }
 
+    void setGlyphInterval(int interval) { _interval = interval; }
+    int getGlyphInterval() const { return _interval; }
+
     bool getSpaceForGlyph(Glyph* glyph, int& posX, int& posY);
 
     void addGlyph(Glyph* glyph,int posX, int posY);
@@ -282,6 +285,8 @@ protected:
     // in the texture which could accommodate new glyphs.
     int _margin;
     float _marginRatio;
+    int _interval;
+
     int _usedY;
     int _partUsedX;
     int _partUsedY;