Module: Tioga::Coordinate_Conversions

Defined in:
lib/Tioga/Coordinate_Conversions.rb

Overview

There are four different coordinate systems used in Tioga. The contents of the figure or plot are positioned using “figure” coordinates which correspond to the values along the x and y axes as determined by the boundary attributes. Things like the title and axis labels are positioned using “frame” coordinates that run from (0, 0) at the lower left corner of the frame to (1, 1) at the upper right corner. The frame is positioned on the page using “page” coordinates that run from (0, 0) at the lower left of the page to (1, 1) at the upper right. The actual numbers used in PDF and TeX files are given in “output” coordinates which are a by default tenth of a point (i.e., 720 in output coords equals 1 inch) (but you can redefined the scaling factor as the optional argument to FigureMaker.new).

The coordinate systems are naturally related in the following manner:

figure <-> frame <-> page <-> output

There are conversion routines between each adjacent pair in this chain. There are separate routines for locations (x and y) and for distances (dx and dy). And finally, the chain is closed by conversion routines between figure and output coordinates.

Instance Method Summary collapse

Instance Method Details

#convert_figure_to_frame_dx(dx) ⇒ Object

Convert the distance dx measured in figure x coordinates to the distance in frame x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 124

def convert_figure_to_frame_dx(dx)
end

#convert_figure_to_frame_dy(dy) ⇒ Object

Convert the distance dy measured in figure y coordinates to the distance in frame y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 129

def convert_figure_to_frame_dy(dy)
end

#convert_figure_to_frame_x(x) ⇒ Object

Convert the position x measured in figure x coordinates to the position in frame x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 114

def convert_figure_to_frame_x(x)
end

#convert_figure_to_frame_y(y) ⇒ Object

Convert the position y measured in figure y coordinates to the position in frame y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 119

def convert_figure_to_frame_y(y)
end

#convert_figure_to_output_dx(dx) ⇒ Object

Convert the distance dx measured in figure x coordinates to the distance in output x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 164

def convert_figure_to_output_dx(dx)
end

#convert_figure_to_output_dy(dy) ⇒ Object

Convert the distance dy measured in figure y coordinates to the distance in output y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 169

def convert_figure_to_output_dy(dy)
end

#convert_figure_to_output_x(x) ⇒ Object

Convert the position x measured in figure x coordinates to the position in output x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 154

def convert_figure_to_output_x(x)
end

#convert_figure_to_output_y(y) ⇒ Object

Convert the position y measured in figure y coordinates to the position in output y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 159

def convert_figure_to_output_y(y) 
end

#convert_frame_to_figure_dx(dx) ⇒ Object

Convert the distance dx measured in frame x coordinates to the distance in figure x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 144

def convert_frame_to_figure_dx(dx)
end

#convert_frame_to_figure_dy(dy) ⇒ Object

Convert the distance dy measured in frame y coordinates to the distance in figure y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 149

def convert_frame_to_figure_dy(dy)
end

#convert_frame_to_figure_x(x) ⇒ Object

Convert the position x measured in frame x coordinates to the position in figure x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 134

def convert_frame_to_figure_x(x)
end

#convert_frame_to_figure_y(y) ⇒ Object

Convert the position y measured in frame y coordinates to the position in figure y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 139

def convert_frame_to_figure_y(y)
end

#convert_frame_to_page_dx(dx) ⇒ Object

Convert the distance dx measured in frame x coordinates to the distance in page x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 104

def convert_frame_to_page_dx(dx)
end

#convert_frame_to_page_dy(dy) ⇒ Object

Convert the distance dy measured in frame y coordinates to the distance in page y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 109

def convert_frame_to_page_dy(dy)
end

#convert_frame_to_page_x(x) ⇒ Object

Convert the position x measured in frame x coordinates to the position in page x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 94

def convert_frame_to_page_x(x)
end

#convert_frame_to_page_y(y) ⇒ Object

Convert the position y measured in frame y coordinates to the position in page y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 99

def convert_frame_to_page_y(y)
end

#convert_output_to_figure_dx(dx) ⇒ Object

Convert the distance dx measured in output x coordinates to the distance in figure x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 184

def convert_output_to_figure_dx(dx)
end

#convert_output_to_figure_dy(dy) ⇒ Object

Convert the distance dy measured in output y coordinates to the distance in figure y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 189

def convert_output_to_figure_dy(dy)
end

#convert_output_to_figure_x(x) ⇒ Object

Convert the position x measured in output x coordinates to the position in figure x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 174

def convert_output_to_figure_x(x)
end

#convert_output_to_figure_y(y) ⇒ Object

Convert the position y measured in output y coordinates to the position in figure y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 179

def convert_output_to_figure_y(y)
end

#convert_output_to_page_dx(dx) ⇒ Object

Convert the distance dx measured in output x coordinates to the distance in page x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 64

def convert_output_to_page_dx(dx)
end

#convert_output_to_page_dy(dy) ⇒ Object

Convert the distance dy measured in output y coordinates to the same distance in page y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 69

def convert_output_to_page_dy(dy)
end

#convert_output_to_page_x(x) ⇒ Object

Convert the position x measured in output x coordinates to the position in page x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 54

def convert_output_to_page_x(x)
end

#convert_output_to_page_y(y) ⇒ Object

Convert the position y measured in output y coordinates to the position in page y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 59

def convert_output_to_page_y(y)
end

#convert_page_to_frame_dx(dx) ⇒ Object

Convert the distance dx measured in page x coordinates to the distance in frame x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 84

def convert_page_to_frame_dx(dx)
end

#convert_page_to_frame_dy(dy) ⇒ Object

Convert the distance dy measured in page y coordinates to the distance in frame y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 89

def convert_page_to_frame_dy(dy)
end

#convert_page_to_frame_x(x) ⇒ Object

Convert the position x measured in page x coordinates to the position in frame x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 74

def convert_page_to_frame_x(x)
end

#convert_page_to_frame_y(y) ⇒ Object

Convert the position y measured in page y coordinates to the position in frame y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 79

def convert_page_to_frame_y(y)
end

#convert_page_to_output_dx(dx) ⇒ Object

Convert the distance dx measured in page x coordinates to the distance in output x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 44

def convert_page_to_output_dx(dx)
end

#convert_page_to_output_dy(dy) ⇒ Object

Convert the distance dy measured in page y coordinates to the distance in output y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 49

def convert_page_to_output_dy(dy)
end

#convert_page_to_output_x(x) ⇒ Object

Convert the position x measured in page x coordinates to the position in output x coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 34

def convert_page_to_output_x(x)
end

#convert_page_to_output_y(y) ⇒ Object

Convert the position y measured in page y coordinates to the position in output y coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 39

def convert_page_to_output_y(y)
end

#convert_to_degrees(dx, dy) ⇒ Object

Returns the angle measured in degrees clockwise from the horizontal for the slope specified by dx and dy given in figure coordinates.



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 194

def convert_to_degrees(dx, dy)
end

#scaling_factor ⇒ Object

Returns the scaling factor from postscript points to output coordinates (10 by default)



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# File 'lib/Tioga/Coordinate_Conversions.rb', line 29

def scaling_factor
end