Only slightly totally broken SVG transformations

Argh

The matrices are ((a c e) (b d f) (0 0 1))

*Not* ((a b c) (d e f) (0 0 1))

I guess it's better than the Rect bounds crap.
But still broken.

diff --git a/src/document.cpp b/src/document.cpp
index f23b406..9ac96b3 100644 (file)
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -263,40 +263,143 @@ bool Document::operator==(const Document & equ) const
 
 
 
+// Behold my amazing tokenizing abilities
+static string & GetToken(const string & d, string & token, unsigned & i, const string & delims = "()[],{}<>;:=")
+{
+       token.clear();
+       while (i < d.size() && iswspace(d[i]))
+       {
+               ++i;
+       }
+       
+       while (i < d.size())
+       {
+               if (iswspace(d[i]) || strchr(delims.c_str(),d[i]) != NULL)
+               {
+                       if (token.size() == 0 && !iswspace(d[i]))
+                       {
+                               token += d[i++];
+                       }
+                       break;  
+               }
+               token += d[i++];
+       }
+       //Debug("Got token \"%s\"", token.c_str());
+       return token;
+}
+
+static void GetXYPair(const string & d, Real & x, Real & y, unsigned & i,const string & delims = "()[],{}<>;:=")
+{
+       string token("");
+       x = strtod(GetToken(d, token, i, delims).c_str(),NULL);
+       if (GetToken(d, token, i, delims) != ",")
+       {
+               Fatal("Expected \",\" seperating x,y pair");
+       }
+       y = strtod(GetToken(d, token, i, delims).c_str(),NULL);
+}
+
+static void TransformXYPair(Real & x, Real & y, SVGMatrix & transform)
+{
+       Real x0(x);
+       x = transform.a * x + transform.c * y + transform.e;
+       y = transform.b * x0 + transform.d * y + transform.f;
+}
+
+void Document::ParseSVGTransform(const string & s, SVGMatrix & transform)
+{
+       Debug("Parsing transform %s", s.c_str());
+       string token;
+       string command;
+       unsigned i = 0;
+       GetToken(s, command, i);
+       Debug("Token is \"%s\"", command.c_str());
+       
+       SVGMatrix delta = {1,0,0,1,0,0};
+       
+       
+       assert(GetToken(s,token, i) == "(");
+       if (command == "translate")
+       {
+               GetXYPair(s, delta.e, delta.f, i);
+               assert(GetToken(s,token, i) == ")");    
+       }
+       else if (command == "matrix")
+       {
+               GetXYPair(s, delta.a, delta.b,i);
+               GetXYPair(s, delta.c, delta.d,i);
+               GetXYPair(s, delta.e, delta.f,i);
+               assert(GetToken(s,token, i) == ")");    
+       }
+       else if (command == "scale")
+       {
+               delta.a = (strtod(GetToken(s,token,i).c_str(), NULL));
+               GetToken(s, token, i);
+               if (token != ")")
+               {
+                       delta.b = (strtod(token.c_str(), NULL));
+               }
+               else
+               {
+                       delta.b = delta.a;
+               }
+               
+       }
+       else
+       {
+               Warn("Unrecognised transform \"%s\", using identity", command.c_str());
+       }
+       
+       Debug("Old transform is {%f,%f,%f,%f,%f,%f}", transform.a, transform.b, transform.c, transform.d,transform.e,transform.f);
+       Debug("Delta transform is {%f,%f,%f,%f,%f,%f}", delta.a, delta.b, delta.c, delta.d,delta.e,delta.f);
+       
+       SVGMatrix old(transform);
+       transform.a = old.a * delta.a + old.c * delta.b;
+       transform.c = old.a * delta.c + old.c * delta.d;
+       transform.e = old.a * delta.e + old.c * delta.f + old.e;
+       
+       transform.b = old.b * delta.a + old.d * delta.b;
+       transform.d = old.b * delta.c + old.d * delta.d;
+       transform.f = old.b * delta.e + old.d * delta.f + old.f;
+       
+       Debug("New transform is {%f,%f,%f,%f,%f,%f}", transform.a, transform.b, transform.c, transform.d,transform.e,transform.f);
+}
 
-void Document::ParseSVGNode(pugi::xml_node & root, const Rect & bounds, Real & width, Real & height)
+void Document::ParseSVGNode(pugi::xml_node & root, SVGMatrix & parent_transform)
 {
        Debug("Parse node <%s>", root.name());
-       pugi::xml_attribute attrib_w = root.attribute("width");
-       pugi::xml_attribute attrib_h = root.attribute("height");
-       if (!attrib_w.empty())
-               width = attrib_w.as_float() * bounds.w;
-       if (!attrib_h.empty())
-               height = attrib_h.as_float() * bounds.h;
-                       
+
+               
        for (pugi::xml_node child = root.first_child(); child; child = child.next_sibling())
        {
-
+               SVGMatrix transform(parent_transform);  
+               pugi::xml_attribute attrib_trans = child.attribute("transform");
+               if (!attrib_trans.empty())
+               {
+                       ParseSVGTransform(attrib_trans.as_string(), transform);
+               }
                
                if (strcmp(child.name(), "svg") == 0 || strcmp(child.name(),"g") == 0
                        || strcmp(child.name(), "group") == 0)
                {
-                       //TODO: Handle translates etc here
-                       ParseSVGNode(child, bounds, width, height);
+                       
+                       ParseSVGNode(child, transform);
                        continue;
                }
                else if (strcmp(child.name(), "path") == 0)
                {
                        string d = child.attribute("d").as_string();
                        Debug("Path data attribute is \"%s\"", d.c_str());
-                       ParseSVGPathData(d, Rect(bounds.x,bounds.y,width,height));
+                       ParseSVGPathData(d, transform);
                }
                else if (strcmp(child.name(), "line") == 0)
                {
-                       Real x0(child.attribute("x1").as_float()/width + bounds.x);
-                       Real y0(child.attribute("y1").as_float()/height + bounds.y);
-                       Real x1(child.attribute("x2").as_float()/width + bounds.x);
-                       Real y1(child.attribute("y2").as_float()/height + bounds.y);
+                       Real x0(child.attribute("x1").as_float());
+                       Real y0(child.attribute("y1").as_float());
+                       Real x1(child.attribute("x2").as_float());
+                       Real y1(child.attribute("y2").as_float());
+                       TransformXYPair(x0,y0,transform);
+                       TransformXYPair(x1,y1,transform);
                        unsigned index = AddBezierData(Bezier(x0,y0,x1,y1,x1,y1,x1,y1));
                        Add(BEZIER, Rect(0,0,1,1), index);
                }
@@ -307,8 +410,15 @@ void Document::ParseSVGNode(pugi::xml_node & root, const Rect & bounds, Real & w
                        for (size_t i = 0; i < 4; ++i)
                                coords[i] = child.attribute(attrib_names[i]).as_float();
                        
-                       bool outline = !(child.attribute("fill"));
-                       Add(outline?RECT_OUTLINE:RECT_FILLED, Rect(coords[0]/width + bounds.x, coords[1]/height + bounds.y, coords[2]/width, coords[3]/height),0);
+                       Real x2(coords[0]+coords[2]);
+                       Real y2(coords[1]+coords[3]);
+                       TransformXYPair(coords[0],coords[1],transform); // x, y, transform
+                       TransformXYPair(x2,y2,transform);
+                       coords[2] = x2 - coords[0];
+                       coords[3] = y2 - coords[1];
+                       
+                       bool outline = !(child.attribute("fill") && strcmp(child.attribute("fill").as_string(),"none") != 0);
+                       Add(outline?RECT_OUTLINE:RECT_FILLED, Rect(coords[0], coords[1], coords[2], coords[3]),0);
                }
                else if (strcmp(child.name(), "circle") == 0)
                {
@@ -316,10 +426,12 @@ void Document::ParseSVGNode(pugi::xml_node & root, const Rect & bounds, Real & w
                        Real cy = child.attribute("cy").as_float();
                        Real r = child.attribute("r").as_float();
                        
-                       Real x = (cx - r)/width + bounds.x; 
-                       Real y = (cy - r)/height + bounds.y; 
-                       Real w = Real(2)*r/width; 
-                       Real h = Real(2)*r/height;
+                       Real x = (cx - r);
+                       Real y = (cy - r);
+                       TransformXYPair(x,y,transform);
+                       Real w = Real(2)*r*transform.a; // width scales
+                       Real h = Real(2)*r*transform.d; // height scales
+                       
                        
                        Rect rect(x,y,w,h);
                        Add(CIRCLE_FILLED, rect,0);
@@ -327,8 +439,9 @@ void Document::ParseSVGNode(pugi::xml_node & root, const Rect & bounds, Real & w
                }
                else if (strcmp(child.name(), "text") == 0)
                {
-                       Real x = child.attribute("x").as_float()/width + bounds.x;
-                       Real y = child.attribute("y").as_float()/height + bounds.y;
+                       Real x = child.attribute("x").as_float();
+                       Real y = child.attribute("y").as_float();
+                       TransformXYPair(x,y,transform);
                        Debug("Add text \"%s\"", child.child_value());
                        AddText(child.child_value(), 0.05, x, y);
                }
@@ -352,40 +465,16 @@ void Document::LoadSVG(const string & filename, const Rect & bounds)
        Debug("Loaded XML - %s", result.description());
        
        input.close();
-       Real width(1);
-       Real height(1);
-       ParseSVGNode(doc_xml, bounds,width,height);
-}
 
-// Behold my amazing tokenizing abilities
-static string & GetToken(const string & d, string & token, unsigned & i)
-{
-       token.clear();
-       while (i < d.size() && iswspace(d[i]))
-       {
-               ++i;
-       }
-       
-       while (i < d.size())
-       {
-               if (d[i] == ',' || (isalpha(d[i]) && d[i] != 'e') || iswspace(d[i]))
-               {
-                       if (token.size() == 0 && !iswspace(d[i]))
-                       {
-                               token += d[i++];
-                       }
-                       break;  
-               }
-               token += d[i++];
-       }
-       //Debug("Got token \"%s\"", token.c_str());
-       return token;
+       SVGMatrix transform = {bounds.w, 0,bounds.x, bounds.h,0,bounds.y};
+       ParseSVGNode(doc_xml, transform);
 }
 
 
+
 // Fear the wrath of the tokenizing svg data
 // Seriously this isn't really very DOM-like at all is it?
-void Document::ParseSVGPathData(const string & d, const Rect & bounds)
+void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
 {
        Real x[4] = {0,0,0,0};
        Real y[4] = {0,0,0,0};
@@ -401,6 +490,8 @@ void Document::ParseSVGPathData(const string & d, const Rect & bounds)
        
        bool start = false;
        
+       static string delims("()[],{}<>;:=LlmMqQzZcC");
+       
        while (i < d.size() && GetToken(d, token, i).size() > 0)
        {
                if (isalpha(token[0]))
@@ -416,43 +507,43 @@ void Document::ParseSVGPathData(const string & d, const Rect & bounds)
                        
                if (command == "m" || command == "M")
                {
-                       Debug("Construct moveto command");
-                       Real dx = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.w;
-                       assert(GetToken(d,token,i) == ",");
-                       Real dy = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.h;
+                       //Debug("Construct moveto command");
+                       Real dx = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) * transform.a;
+                       assert(GetToken(d,token,i,delims) == ",");
+                       Real dy = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) * transform.d;
                        
-                       x[0] = (relative) ? x[0] + dx : dx;
-                       y[0] = (relative) ? y[0] + dy : dy;
+                       x[0] = (relative) ? x[0] + dx : dx + transform.e;
+                       y[0] = (relative) ? y[0] + dy : dy + transform.f;
                        
 
                        
-                       Debug("mmoveto %f,%f", Float(x[0]),Float(y[0]));
+                       //Debug("mmoveto %f,%f", Float(x[0]),Float(y[0]));
                        command = (command == "m") ? "l" : "L";
                }
                else if (command == "c" || command == "C" || command == "q" || command == "Q")
                {
-                       Debug("Construct curveto command");
-                       Real dx = Real(strtod(GetToken(d,token,i).c_str(),NULL))/bounds.w;
-                       assert(GetToken(d,token,i) == ",");
-                       Real dy = Real(strtod(GetToken(d,token,i).c_str(),NULL))/bounds.h;
+                       //Debug("Construct curveto command");
+                       Real dx = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) * transform.a;
+                       assert(GetToken(d,token,i,delims) == ",");
+                       Real dy = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL))*transform.d;
                        
-                       x[1] = (relative) ? x[0] + dx : dx;
-                       y[1] = (relative) ? y[0] + dy : dy;
+                       x[1] = (relative) ? x[0] + dx : dx + transform.e;
+                       y[1] = (relative) ? y[0] + dy : dy + transform.f;
                        
-                       dx = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.w;
-                       assert(GetToken(d,token,i) == ",");
-                       dy = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.h;
+                       dx = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) *transform.a;
+                       assert(GetToken(d,token,i,delims) == ",");
+                       dy = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) *transform.d;
                        
-                       x[2] = (relative) ? x[0] + dx : dx;
-                       y[2] = (relative) ? y[0] + dy : dy;
+                       x[2] = (relative) ? x[0] + dx : dx + transform.e;
+                       y[2] = (relative) ? y[0] + dy : dy + transform.f;
                        
                        if (command != "q" && command != "Q")
                        {
-                               dx = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.w;
-                               assert(GetToken(d,token,i) == ",");
-                               dy = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.h;
-                               x[3] = (relative) ? x[0] + dx : dx;
-                               y[3] = (relative) ? y[0] + dy : dy;
+                               dx = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) *transform.a;
+                               assert(GetToken(d,token,i,delims) == ",");
+                               dy = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) *transform.d;
+                               x[3] = (relative) ? x[0] + dx : dx + transform.e;
+                               y[3] = (relative) ? y[0] + dy : dy + transform.f;
                        }
                        else
                        {
@@ -469,7 +560,7 @@ void Document::ParseSVGPathData(const string & d, const Rect & bounds)
                        Add(BEZIER,Rect(0,0,1,1),index);
                        
                        
-                       Debug("[%u] curveto %f,%f %f,%f %f,%f", index, Float(x[1]),Float(y[1]),Float(x[2]),Float(y[2]),Float(x[3]),Float(y[3]));
+                       //Debug("[%u] curveto %f,%f %f,%f %f,%f", index, Float(x[1]),Float(y[1]),Float(x[2]),Float(y[2]),Float(x[3]),Float(y[3]));
                        
                        x[0] = x[3];
                        y[0] = y[3];
@@ -478,14 +569,14 @@ void Document::ParseSVGPathData(const string & d, const Rect & bounds)
                }
                else if (command == "l" || command == "L")
                {
-                       Debug("Construct lineto command");
+                       //Debug("Construct lineto command");
                
-                       Real dx = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.w;
-                       assert(GetToken(d,token,i) == ",");
-                       Real dy = Real(strtod(GetToken(d,token,i).c_str(),NULL)) / bounds.h;
+                       Real dx = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) *transform.a;
+                       assert(GetToken(d,token,i,delims) == ",");
+                       Real dy = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL)) *transform.d;
                        
-                       x[1] = (relative) ? x[0] + dx : dx;
-                       y[1] = (relative) ? y[0] + dy : dy;
+                       x[1] = (relative) ? x[0] + dx : dx + transform.e;
+                       y[1] = (relative) ? y[0] + dy : dy + transform.f;
                        
                        x[2] = x[1];
                        y[2] = y[1];
@@ -496,7 +587,7 @@ void Document::ParseSVGPathData(const string & d, const Rect & bounds)
                        unsigned index = AddBezierData(Bezier(x[0],y[0],x[1],y[1],x[2],y[2],x[3],y[3]));
                        Add(BEZIER,Rect(0,0,1,1),index);
                        
-                       Debug("[%u] lineto %f,%f %f,%f", index, Float(x[0]),Float(y[0]),Float(x[1]),Float(y[1]));
+                       //Debug("[%u] lineto %f,%f %f,%f", index, Float(x[0]),Float(y[0]),Float(x[1]),Float(y[1]));
                        
                        x[0] = x[3];
                        y[0] = y[3];
@@ -504,7 +595,7 @@ void Document::ParseSVGPathData(const string & d, const Rect & bounds)
                }
                else if (command == "z" || command == "Z")
                {
-                       Debug("Construct returnto command");
+                       //Debug("Construct returnto command");
                        x[1] = x0;
                        y[1] = y0;
                        x[2] = x0;
@@ -515,7 +606,7 @@ void Document::ParseSVGPathData(const string & d, const Rect & bounds)
                        unsigned index = AddBezierData(Bezier(x[0],y[0],x[1],y[1],x[2],y[2],x[3],y[3]));
                        Add(BEZIER,Rect(0,0,1,1),index);
                        
-                       Debug("[%u] returnto %f,%f %f,%f", index, Float(x[0]),Float(y[0]),Float(x[1]),Float(y[1]));
+                       //Debug("[%u] returnto %f,%f %f,%f", index, Float(x[0]),Float(y[0]),Float(x[1]),Float(y[1]));
                        
                        x[0] = x[3];
                        y[0] = y[3];

diff --git a/src/document.h b/src/document.h
index 8f2c087..52e9295 100644 (file)
--- a/src/document.h
+++ b/src/document.h
@@ -11,6 +11,18 @@ typedef struct stbtt_fontinfo stbtt_fontinfo;
 
 namespace IPDF
 {
+       struct SVGMatrix
+       {
+               Real a; // width
+               Real b; // skew y by x
+               Real c; // skew x by y
+               Real d; // height
+               Real e; // translate x
+               Real f; // translate y
+       };
+       // SVG matrix transforms (x,y) <- (a x' + c y' + e, b x' + d y' + f)
+       // Equivelant to OpenGL 3d matrix transform ((a, c, e) (b, d, f) (0,0,1))
+       
        class Document
        {
                public:
@@ -41,6 +53,10 @@ namespace IPDF
                        unsigned AddBezierData(const Bezier & bezier);
                        
 
+
+                       
+
+                       
                        
                        /** SVG Related functions **/
                        
@@ -48,9 +64,12 @@ namespace IPDF
                        void LoadSVG(const std::string & filename, const Rect & bounds = Rect(0,0,1,1));
                        
                        /** Parse an SVG node or SVG-group node, adding children to the document **/
-                       void ParseSVGNode(pugi::xml_node & root, const Rect & bounds, Real & width, Real & height);
+                       void ParseSVGNode(pugi::xml_node & root, SVGMatrix & transform);
                        /** Parse an SVG path with string **/
-                       void ParseSVGPathData(const std::string & d, const Rect & bounds);
+                       void ParseSVGPathData(const std::string & d, const SVGMatrix & transform);
+                       
+                       /** Modify an SVG transformation matrix **/
+                       static void ParseSVGTransform(const std::string & s, SVGMatrix & transform);
 
                        /** Font related functions **/
                        void SetFont(const std::string & font_filename);

diff --git a/src/main.cpp b/src/main.cpp
index 49c818e..8942a9c 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -78,7 +78,7 @@ int main(int argc, char ** argv)
 
        if (input_filename != NULL)
        {
-               doc.LoadSVG(input_filename);
+               doc.LoadSVG(input_filename, Rect(0,0,Real(1)/Real(800),Real(1)/Real(600)));
        }
        else 
        {

diff --git a/src/svg-tests/lines.svg b/src/svg-tests/lines.svg
new file mode 100644 (file)
index 0000000..f15c961
--- /dev/null
+++ b/src/svg-tests/lines.svg
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     width="400" height="400">
+    <line x1="0" y1="0" x2="400" y2="0" stroke="red"/>
+    
+    <line x1="0" y1="0" x2="0" y2="400" stroke="red"/>
+    
+    <line x1="400" y1="0" x2="400" y2="400" stroke="red"/>
+    
+    <line x1="0" y1="400" x2="400" y2="400" stroke="red"/>
+    
+       <line 
+               x1="0" y1="0" x2="400" y2="400" stroke="black"/>
+
+       <line
+               x1="400" y1="0" x2="0" y2="400" stroke="black"/>
+</svg>

diff --git a/src/svg-tests/paths.svg b/src/svg-tests/paths.svg
new file mode 100644 (file)
index 0000000..dd72201
--- /dev/null
+++ b/src/svg-tests/paths.svg
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     width="400" height="400"
+   >
+       <g   transform="translate(-230,-250)">
+    <path
+       style="fill:#ac9d93;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;fill-opacity:1"
+       d="m 478.78564,339.0153 -16.66751,-1.01016 -36.11296,-47.7297 -12.6269,-33.0825 28.53681,17.17259 23.2335,24.4962 10.35407,21.97082 z"
+       id="path4374"
+       inkscape:connector-curvature="0" />
+    <path
+       style="fill:#ac9d93;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;fill-opacity:1"
+       d="m 451.25899,350.37951 -51.26524,-30.55711 -27.52666,-37.12311 -0.25254,-6.81853 30.30458,4.29315 23.23351,11.11168 24.74873,26.5165 12.62691,21.71828 z"
+       id="path4370"
+       inkscape:connector-curvature="0" />
+       
+           <path
+       style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       d="M 25,158.21333 36.071428,144.28476 l 20,20 Z"
+       id="path4498"
+       inkscape:connector-curvature="0"
+       transform="translate(227.32245,266.11266)" />
+       </g>
+ </svg>

diff --git a/src/svg-tests/text.svg b/src/svg-tests/text.svg
new file mode 100644 (file)
index 0000000..7c572c6
--- /dev/null
+++ b/src/svg-tests/text.svg
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     width="400" height="400">
+       <text x="200" y="100">Example SVG text 1</text>
+       <line x1="10" y1="40" x2="200" y2="40" stroke="black"/>
+</svg>

diff --git a/src/svg-tests/transforms.svg b/src/svg-tests/transforms.svg
new file mode 100644 (file)
index 0000000..e840314
--- /dev/null
+++ b/src/svg-tests/transforms.svg
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     width="400" height="400">
+    <rect x="0" y="0" width="400" height="400" stroke="red" fill="none"/>
+    
+    
+    <rect x="0" y="0" width="100" height="100" stroke="blue" fill="none"
+               transform="translate(100,100)"
+    />
+    
+    <rect x="100" y="50" width="25" height="25" stroke="green" fill="none"
+               transform="scale(2,2)"
+       />
+       
+       <!--<rect x="200" y="150" width="50" height="75" stroke="red" fill="none"
+               
+       />-->
+    
+</svg>