Class: GeoPattern::MosaicSquaresPattern

Inherits:
BasePattern
  • Object
show all
Defined in:
lib/geo_pattern/pattern/mosaic_squares_pattern.rb

Constant Summary

Constants inherited from BasePattern

BasePattern::FILL_COLOR_DARK, BasePattern::FILL_COLOR_LIGHT, BasePattern::OPACITY_MAX, BasePattern::OPACITY_MIN, BasePattern::STROKE_COLOR, BasePattern::STROKE_OPACITY

Instance Attribute Summary

Attributes inherited from BasePattern

#hash, #svg

Instance Method Summary collapse

Methods inherited from BasePattern

#fill_color, #hex_val, #map, #opacity

Instance Method Details

#build_right_triangle_shape(side_length) ⇒ Object 



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# File 'lib/geo_pattern/pattern/mosaic_squares_pattern.rb', line 72

def build_right_triangle_shape(side_length)
  "0, 0, #{side_length}, #{side_length}, 0, #{side_length}, 0, 0"
end

#draw_inner_mosaic_tile(x, y, triangle_size, vals) ⇒ Object 



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# File 'lib/geo_pattern/pattern/mosaic_squares_pattern.rb', line 30

def draw_inner_mosaic_tile(x, y, triangle_size, vals)
  triangle = build_right_triangle_shape(triangle_size)
  opacity  = opacity(vals[0])
  fill     = fill_color(vals[0])
  styles   = {
    "stroke"         => STROKE_COLOR,
    "stroke-opacity" => STROKE_OPACITY,
    "fill-opacity"   => opacity,
    "fill"           => fill
  }
  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x+triangle_size}, #{y}) scale(-1, 1)"}))
  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x+triangle_size}, #{y+triangle_size*2}) scale(1, -1)"}))

  opacity = opacity(vals[1])
  fill    = fill_color(vals[1])
  styles  = {
    "stroke"         => STROKE_COLOR,
    "stroke-opacity" => STROKE_OPACITY,
    "fill-opacity"   => opacity,
    "fill"           => fill
  }
  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x+triangle_size}, #{y+triangle_size*2}) scale(-1, -1)"}))
  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x+triangle_size}, #{y}) scale(1, 1)"}))
end

#draw_outer_mosaic_tile(x, y, triangle_size, val) ⇒ Object 



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# File 'lib/geo_pattern/pattern/mosaic_squares_pattern.rb', line 55

def draw_outer_mosaic_tile(x, y, triangle_size, val)
  opacity  = opacity(val)
  fill     = fill_color(val)
  triangle = build_right_triangle_shape(triangle_size)
  styles   = {
    "stroke"         => STROKE_COLOR,
    "stroke-opacity" => STROKE_OPACITY,
    "fill-opacity"   => opacity,
    "fill"           => fill
  }

  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x}, #{y+triangle_size}) scale(1, -1)"}))
  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x+triangle_size*2}, #{y+triangle_size}) scale(-1, -1)"}))
  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x}, #{y+triangle_size}) scale(1, 1)"}))
  svg.polyline(triangle, styles.merge({"transform" => "translate(#{x+triangle_size*2}, #{y+triangle_size}) scale(-1, 1)"}))
end

#render_to_svg ⇒ Object 



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# File 'lib/geo_pattern/pattern/mosaic_squares_pattern.rb', line 3

def render_to_svg
  triangle_size = map(hex_val(0, 1), 0, 15, 15, 50)

  svg.set_width(triangle_size * 8)
  svg.set_height(triangle_size * 8)

  i = 0
  for y in 0..3
    for x in 0..3
      if x.even?
        if y.even?
          draw_outer_mosaic_tile(x*triangle_size*2, y*triangle_size*2, triangle_size, hex_val(i, 1))
        else
          draw_inner_mosaic_tile(x*triangle_size*2, y*triangle_size*2, triangle_size, [hex_val(i, 1), hex_val(i+1, 1)])
        end
      else
        if y.even?
          draw_inner_mosaic_tile(x*triangle_size*2, y*triangle_size*2, triangle_size, [hex_val(i, 1), hex_val(i+1, 1)])
        else
          draw_outer_mosaic_tile(x*triangle_size*2, y*triangle_size*2, triangle_size, hex_val(i, 1))
        end
      end
      i += 1
    end
  end
end