Tester101 Tester101 - 5 months ago 12
Ruby Question

Export to dxf from Google Sketchup

How can I write text entities to a dxf file?

I found a script that can export Sketchup drawings to dxf files, unfortunately it was ignoring layers and text. I fixed it so it outputs the proper layer, but I cannot figure out how to get it to output the text.

I have it to the point where it pops up a message when it comes across a text entity in the entities collection, but I'm not sure how to get it to write it to the file properly.

Answer

This is how I did it.

def dxf_text_output_test
    $dxf_file = File.new("C:\testfile.dxf" , "w" ) 
    model = Sketchup.active_model
    entities = model.entities
    entities.each do |entity|
    	if(entity.typename="Text")
    		dxf_output_text(entity)
    	end
    end
end

def dxf_ouput_text(text)
    points = text.point
    $dxf_file.puts( "  0\nTEXT\n1\n192\n330\n1F\n100\nAcDbEntity\n8\n"+text.layer.name+"\n")
    $dxf_file.puts("100\nAcDbText\n")
    if(points == nil)	
    	$dxf_file.puts("10\n0.0\n")#x
    	$dxf_file.puts("20\n0.0\n")#y
    	$dxf_file.puts("30\n0.0\n")#z
    else
    	$dxf_file.puts("10\n"+(points.x.to_f * $dxf_conv).to_s+"\n")#x
    	$dxf_file.puts("20\n"+(points.y.to_f * $dxf_conv).to_s+"\n")#y
    	$dxf_file.puts("30\n"+(points.z.to_f * $dxf_conv).to_s+"\n")#z
    end
    $dxf_file.puts("40\n"+(1 * $dxf_conv).to_s+"\n")#text height
    $dxf_file.puts("39\n"+text.line_weight.to_s+"\n")#thickness
    $dxf_file.puts("1\n"+text.text+"\n")#text
end