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This tool provides a value scale for map legends of proportional-symbol maps (one of the most frequent types of cartodiagrams). The curve represents a function of phenomenon values on x-axis to respective height of map symbols on y-axis. For all supported 2D symbols (circle, square, triangle, pentagon, hexagon ... all being regular), this function follows the principle that the symbol area is increasing accordingly to the phenomenon value. Flannery appearance compensation is not implemented in the algorithm. For one-dimensional shapes (column and apex), the function is linear resulting in a straight line. You may download your output as vector SVG and PDF files. In case of the SVG output, X-axis is labeled using sans-serif Arial font while in PDF using general sans-serif font. In both cases, the labels are easily editable in a graphic software.
This website use technical cookies to store your inputted parameters before every use of the tool, and so you don't need to change all of them again from the default. No personal details are stored. However, you may delete the stored values and reload default values by hitting the button below. If cookies are disallowed, inputted form values will not be stored for subsequent use.