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126 lines
5.0 KiB
126 lines
5.0 KiB
import cairo, os, math
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import Svg2GcodeConverter
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# This renderer takes the generated GCODE and turns it into two images
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# One is an SVG of the tool paths, the other a png image
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class Renderer():
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def __init__(self, settings):
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self.settings = settings
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self.svg_surface = cairo.SVGSurface("tmp/rendered-output-t.svg", self.settings.canvas_x, self.settings.canvas_y)
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self.svg_context = cairo.Context(self.svg_surface)
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self.svg_context.scale(1, 1)
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self.svg_context.set_line_width(0.1)
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def clear_screen(self):
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self.svg_surface.finish()
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self.svg_surface = cairo.SVGSurface("tmp/rendered-output-t.svg", self.settings.canvas_x, self.settings.canvas_y)
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self.svg_context = cairo.Context(self.svg_surface)
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self.svg_context.scale(1, 1)
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self.svg_context.set_line_width(0.1)
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# self.svg_context.rectangle(0, 0, self.settings.canvas_x, self.settings.canvas_y)
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# self.svg_context.set_source_rgba(1, 1, 1, 1.0)
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# self.svg_context.fill()
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# self.svg_context.set_source_rgba(0, 0, 0, 1.0)
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# self.svg_context.stroke()
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# Render GCODE from the gcode-output.gcode output file that was generated in convert_gcode
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def render_gcode(self):
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file = open("output/gcode-output.gcode", "r")
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largest_x = 0
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largest_y = 0
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smallest_x = 99999999
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smallest_y = 99999999
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x = None
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y = None
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for line in file:
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split = line.split(" ")
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command = split[0]
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operands = split[1:]
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prev_x = x
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prev_y = y
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if command == "G1":
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for operand in operands:
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if operand.startswith("X"):
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x = float(operand[1:])
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if x > largest_x: largest_x = x
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if x < smallest_x: smallest_x = x
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elif operand.startswith("Y"):
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y = float(operand[1:])
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if y > largest_y: largest_y = y
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if y < smallest_y: smallest_y = y
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elif operand.startswith("Z{}".format(1)):
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# signify a lift
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if prev_x is not None and prev_y is not None and self.settings.lift_markers:
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# draw a cirlce at the lift
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self.svg_context.arc(prev_x, prev_y, 0.5, 0, 2 * math.pi)
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self.svg_context.stroke()
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# And draw the lift number
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self.svg_context.set_source_rgba(1, 1, 1, 1.0)
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self.svg_context.select_font_face("Purisa", cairo.FONT_SLANT_NORMAL,
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cairo.FONT_WEIGHT_NORMAL)
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self.svg_context.set_font_size(3)
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self.svg_context.move_to(prev_x - self.settings.head_x_offset, prev_y)
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self.svg_context.show_text(str(self.settings.lift_counter))
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self.settings.lift_counter += 1
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self.svg_context.stroke()
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self.svg_context.set_source_rgba(0, 0, 0, 1.0)
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prev_x = None
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prev_y = None
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x = None
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y = None
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if (prev_x != x and prev_x is not None) or (prev_y != y and prev_y is not None):
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prev = Svg2GcodeConverter.untriangulate_lengths(self.settings, prev_x, prev_y)
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this = Svg2GcodeConverter.untriangulate_lengths(self.settings, x, y)
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#self.svg_context.line_to(prev_x, prev_y)
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#self.svg_context.line_to(x, y)
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self.svg_context.line_to(prev[0], prev[1])
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self.svg_context.line_to(this[0], this[1])
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self.svg_context.stroke()
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print("Largest X : " + str(largest_x))
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print("Smallest X : " + str(smallest_x))
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print("Largest Y : " + str(largest_y))
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print("Smallest Y : " + str(smallest_y))
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if largest_x > self.settings.canvas_x:
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print("X OVERFLOW")
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if largest_y > self.settings.canvas_y:
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print("Y OVERFLOW")
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if smallest_x < 0:
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print("X_UNDERFLOW")
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if smallest_y < 0:
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print("Y_UNDERFLOW")
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self.save_surfaces()
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# self.init_surfaces()
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def save_surfaces(self):
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self.svg_surface.write_to_png('tmp/rendered-output.png')
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# Save the SVG so we can view it, then immediately reopen it so it's ready for a re-render
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self.svg_surface.finish()
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os.rename("tmp/rendered-output-t.svg", "tmp/rendered-output.svg")
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self.svg_surface = cairo.SVGSurface("tmp/rendered-output-t.svg", self.settings.canvas_x, self.settings.canvas_y)
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self.svg_context = cairo.Context(self.svg_surface)
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def toggle_flip_markers(self):
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self.settings.lift_markers = not self.settings.lift_markers |