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The dimensions of the different chart elements - like title, subtitle, etc. - depend on the total size of the chart. The bigger the dimensions of a chart are, the bigger are the font sizes and line thicknesses (for line charts). Vice versa the smaller the dimensions of a chart are, the smaller are the font sizes and line thicknesses.

VPE computes the font- and line sizes optimized depending on the available space. We call that SmartChart Technology: depending on the items displayed (for example with Title, but without Subtitle and the Legend positioned on the Left / Top position) the chart algorithm computes the available space for the visible items and computes font sizes and line thicknesses correspondingly.

VPE offers several properties to specify factors for the font sizes and line thicknesses. With those factors you can not define absolute font- or pen sizes, but relative font- / pen sizes compared to the original default values.