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Subject: Re: [office] surface plots
Hi Andreas, On Wednesday, 2009-07-15 10:39:57 -0600, Andreas J. Guelzow wrote: > Regarding chart:class specified plots: > > surface – The values of multiple <chart:series> (marked as being of type > chart:surface) are interpreted as a 'altitude' at a specific grid > location. The graph may visualize these using colors for height > intervals, creating color bands. > > do I understand this as: > <chart:series chart:values-cell-range-address="S1.$C$1:S1.$C$16"> > <chart:domain table:cell-range-address="S1.$A$1:S1.$A$16"/> > <chart:domain table:cell-range-address="S1.$B$1:S1.$B$16"/> > </chart:series> > > or > > <chart:series chart:values-cell-range-address="S1.$A$1:S1.$A$16" /> > <chart:series chart:values-cell-range-address="S1.$B$1:S1.$B$16" /> > <chart:series chart:values-cell-range-address="S1.$C$1:S1.$C$16" /> > > where C1 gives the altitude at x=A1, y=B1 or > > even as something else. Seems "something else" is it.. Here's the answer of Chart implementer Ingrid Halama: ---%<---snip---%<--- Neither of them. Hm, I think this needs to be specified more precisely. It should be understood as: <chart:series chart:values-cell-range-address="S1.$A$1:S1.$A$16" /> <chart:series chart:values-cell-range-address="S1.$B$1:S1.$B$16" /> <chart:series chart:values-cell-range-address="S1.$C$1:S1.$C$16" /> <chart:series chart:values-cell-range-address="S1.$D$1:S1.$D$16" /> where A1 gives the altitude (y coordinate) at x=1, z=1 and A2 gives the altitude at x=2, z=1 and B1 gives the altitude at x=1, z=2 and B2 gives the altitude at x=2, z=2 and D3 gives the altitude at x=3, z=4 ... Let me try to give a more precise description for the specification: -------- surface – The values of multiple <chart:series> (marked as being of type chart:surface) are interpreted as a 'altitude' at a specific grid location. The graph may visualize these using colors for height intervals, creating color bands. In case of chart:three-dimensional="true" a left handed three dimensional cartesian coordinate system is used. The given values for a series are interpreted as y-coordinates (representing the 'altitude'). The accessory x-coordinates are generated from the positions in the altitude-value sequence starting with 1.0. The first altitude value gets an x value 1.0. The second altitude value is associated with an x value of 2.0 and so forth. The z-coordinates are generated from the positions of the series elements starting with 1.0. The first series has an associated z coordinate of 1.0. The second series has a z-coordinate 2.0 and so forth. In case of chart:three-dimensional="false" each altitude value is located on a Cartesian x-/y-grid. The x-coordinates are generated from the positions in the altitude-value sequence starting with 1.0. The y-coordinates are generated from the positions of the series elements starting with 1.0. ------ A real 3D plot with coordinates x, y and z per series is not specified so far. But that is an interesting candidate for the future. ---%<---snap---%<--- -- OpenOffice.org / StarOffice Calc core developer and i18n transpositionizer. SunSign 0x87F8D412 : 2F58 5236 DB02 F335 8304 7D6C 65C9 F9B5 87F8 D412 OpenOffice.org Engineering at Sun: http://blogs.sun.com/GullFOSS
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