Global Shapes Proposal COMS 4115 Programming Languages and Translators Global Shapes is a language that allows users to easily draw various shapes square circle rectangle ellipse line polyline using latitude and longitude data Andrew Willouer asw2126 6 3 2009 Global Shapes Proposal Jun 3 Introduction Global Shapes is a simple programming language that allows users to easily draw the following twodimensional shapes square circle rectangle ellipse line and polyline using the geographic coordinate system The inclusion of polyline allows the use of any irregular shape Geographic Coordinate System The user must specify the size of the output window The output window is centered at latitude and longitude and has a height and width in miles All shape locations are specified using latitude and longitude values which are converted to pixels and displayed in the correct location within the output window Example specify a latitude longitude of 40 47 and 73 58 will draw a shape centered at New York City which will appear in the top left quadrant in the above picture using that was output window Each shape has the following attributes name latitude longitude width color and notes The name attribute is required and cannot be changed once a shape is created The latitude and longitude are required and are in the decimal format and control the location of the shape The width color and notes are not required The width attribute controls the width of the line of the shape with default being 1 The color controls the color of the lines of the shape with the default being red The notes Andrew Willouer asw2126 2 Global Shapes Proposal Jun 3 attribute allows the user to enter a string of text that is associated and displayed next to the shape Each shape then has some extra attributes such as radius height width which are in miles The compiler will give a warning if a shape will not be displayed in the current output window Example Code Outputwindow 40 47 73 58 200 200 Creates an output window centered around New York City Format for a rectangle rectangle name latitude longitude height length rectangle rect1 40 47 73 58 50 50 rect1 width 10 In miles rect1 color blue rect1 notes This is rectangle around New York City Format for a square square name latitude longitude height square sqa1 40 3 73 5 50 sqa1 width 1 sqa1 color orange sqa1 notes This is a square around New York City Format for a circle circle name latitude longitude diameter circle cic1 40 73 40 just going to use the default values for width color and no notes circle cic2 50 80 88 50 cic2 color blue Format for a ellipse ellipse name latitude longitude height length ellipse ell1 43 45 50 43 50 40 ell1 width 5 Format for a line line name starting latitude start longitude ending latitude ending longitude line line1 40 44 73 30 44 44 77 30 line1 color black Andrew Willouer asw2126 3 Global Shapes Proposal Jun 3 Format for a polyline name starting lat start long next lat next long ending latitude ending longitude polyline poly1 40 30 41 31 42 32 44 43 35 44 poly1 notes Flight plan for aircraft Keywords square rectangle circle ellipse line polyline width color notes the various colors blue red black orange etc Sample Output Not based on code above Andrew Willouer asw2126 4
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