Hi,

I'm a newbie using inkscape to annotate a floor plan I've created with cairo. I'm having a few little problems when I try to do this. The first problem is that the size of the objects in my floor plan change when I change the page format. For example, if I generate a square intended to print as 1" on a side, it initially is the correct size when I open the svg file with inkscape. However, after I pick a page format (eg: US Letter), the size of the square changes significantly. I'm not sure if this is newbie ignorance or a bug in cairo or inkscape. Below is some C code that generates an svg file with a 1" square as an example. How can I make objects print at their original size without simply manually rescaling everything after setting the page format?

Thanks,

David

// compile like this: // g++ -Wall -c -g `pkg-config --cflags gtk+-2.0` -o cairosvg.o cairosvg.cpp // g++ -g -o cairosvg cairosvg.o `pkg-config --libs gtk+-2.0`

#include <gtk/gtk.h> #include <glib.h> #include <gtk/gtk.h> #include <gdk/gdk.h> #include <cairo/cairo-svg.h>

int main(int argc, char *argv[]) {

cairo_surface_t *surface;

surface = cairo_svg_surface_create("foo.svg", 100, 100);

cairo_t *cr; cr = cairo_create (surface); cairo_surface_destroy(surface);

cairo_rectangle (cr, 0.0, 0.0, 100, 100); cairo_clip (cr);

cairo_move_to(cr, 10, 10); cairo_line_to(cr, 10, 82); cairo_line_to(cr, 82, 82); cairo_line_to(cr, 82, 10); cairo_close_path(cr); cairo_set_source_rgb(cr, 0,1,0); cairo_set_line_width (cr, 0.1); cairo_stroke(cr);

cairo_move_to(cr, 46,46); cairo_show_text(cr, "X");

cairo_show_page (cr); cairo_destroy (cr);

return 0;

}

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