SetEqualRangeYOnly

Declaration:

ChartBook.Charts[].SetEqualRangeYOnly (Layers: TIntArray);

The method SetEqualRangeYOnly sets the extents of the x-axes of all layers specified by the parameter Layers in a way that all layers use the same x-scale. The new common scale is derived from the minimum and maximum ranges of the individual scales. Hint: Please note the subtle difference between SetEqualRangeYOnly and AutoRangeYOnly. While AutoRange actually adjusts the scales to cover the entire data range, SetEqualRangeYOnly compares only the current scale settings to find the maximum common range of all scales of the specified layers. Example: This method is primarily used to ensure comparable scales for a set of layers. Let us assume that we have three layers, 2, 3, and 6, with the following ranges of their respective axes: Layer 2: x-axis ..... -3 to +20 y-axis ..... 0 to +100 Layer 3: x-axis ..... 0 to +1 y-axis ..... -20 to -1 Layer 6: x-axis ..... -5 to +10 y-axis ..... +10 to +20 Executing the statement SetEqualRangeYOnly ([2,3,6]); changes the ranges of these three layers as follows: all three x-axis: .... left unchanged all three y-axis: .... -20 to +100 Thus all the data is now displayed using the common scale on the x-axis.