added default constructor for rasterizer

include/scigl_render/render/rasterizer.hpp

@@ -26,6 +26,8 @@ public:
     size_t step;
   };
 
+  Rasterizer();
+
   /**
    * Initialize the rasterizer with 2D dimensions. Use calc_min_raster to
    * determine the minimal dimensions for a given number of views.
@@ -80,6 +82,12 @@ public:
 
   size_t get_views_per_row() const;
   size_t get_views_per_column() const;
+  size_t get_view_width() const;
+  size_t get_view_height() const;
+  void set_views_per_row(size_t n_views);
+  void set_views_per_column(size_t n_views);
+  void set_view_width(size_t width);
+  void set_view_height(size_t height);
 
 private:
   // dimensions of the observation

src/render/rasterizer.cpp

@@ -4,6 +4,10 @@
 
 namespace scigl_render
 {
+Rasterizer::Rasterizer()
+{
+}
+
 Rasterizer::Rasterizer(size_t width, size_t height, size_t views_per_row,
                        size_t views_per_column)
     : width(width), height(height),
@@ -60,6 +64,30 @@ size_t Rasterizer::get_views_per_column() const
 {
   return views_per_column;
 }
+size_t Rasterizer::get_view_width() const
+{
+  return width;
+}
+size_t Rasterizer::get_view_height() const
+{
+  return height;
+}
+void Rasterizer::set_views_per_row(size_t n_views)
+{
+  views_per_row = n_views;
+}
+void Rasterizer::set_views_per_column(size_t n_views)
+{
+  views_per_column = n_views;
+}
+void Rasterizer::set_view_width(size_t width)
+{
+  this->width = width;
+}
+void Rasterizer::set_view_height(size_t height)
+{
+  this->height = height;
+}
 
 Rasterizer::ImageHeader Rasterizer::get_view_image(
     size_t row, size_t column, void *data, size_t pixel_size) const
@@ -68,7 +96,7 @@ Rasterizer::ImageHeader Rasterizer::get_view_image(
   // all the rows above and the columns in front
   ImageHeader header;
   // pixel size is in bytes so do arithmetics in bytes
-  header.data = static_cast<uint8_t*>(data) +
+  header.data = static_cast<uint8_t *>(data) +
                 (xy.second * texture_width + xy.first) * pixel_size;
   header.columns = width;
   header.rows = height;