The Title object draws main, X, and Y axis titles for a parent plot or overlay object.
Header file: ncarg/hlu/Title.h Class name: titleClass Class pointer: NhltitleClass Fortran class function: NHLFTITLECLASS Superclass: View Composite classes: <None>
+---------------------------------------------------------------+ | Title Resource Set | |---------------------------------------------------------------| | NAME TYPE ACCESS | | CLASS DEFAULT | |===============================================================| | tiDeltaF NhlTFloat RCSG | | TiDeltaF 1.5 | |---------------------------------------------------------------| | tiUseMainAttributes NhlTBoolean RCSG | | TiUseMainAttributes False | |---------------------------------------------------------------| | tiMainOn NhlTBoolean RCSG | | TiMainOn <Dynamic> | |---------------------------------------------------------------| | tiMainString NhlTString RCSG | | TiMainString "Main" | |---------------------------------------------------------------| | tiMainSide NhlTPosition RCSG | | TiMainSide "Top" | |---------------------------------------------------------------| | tiMainPosition NhlTPosition RCSG | | TiMainPosition "Center" | |---------------------------------------------------------------| | tiMainOffsetXF NhlTFloat RCSG | | TiMainOffsetXF 0.0 | |---------------------------------------------------------------| | tiMainOffsetYF NhlTFloat RCSG | | TiMainOffsetYF 0.0 | |---------------------------------------------------------------| | tiMainJust NhlTJustification RCSG | | TextJustification "CenterCenter" | |---------------------------------------------------------------| | tiMainFont NhlTFont RCSG | | Font 0 | |---------------------------------------------------------------| | tiMainFontColor NhlTColorIndex RCSG | | FontColor "Foreground" | |---------------------------------------------------------------| | tiMainFontHeightF NhlTFloat RCSG | | FontHeightF 0.025 | |---------------------------------------------------------------| | tiMainFontAspectF NhlTFloat RCSG | | FontAspectF 1.3125 | |---------------------------------------------------------------| | tiMainConstantSpacingF NhlTFloat RCSG | | TextConstantSpacingF 0.0 | |---------------------------------------------------------------| | tiMainFontThicknessF NhlTFloat RCSG | | FontThicknessF 1.0 | |---------------------------------------------------------------| | tiMainFuncCode NhlTCharacter RCSG | | TextFuncCode : | |---------------------------------------------------------------| | tiMainFontQuality NhlTFontQuality RCSG | | FontQuality "High" | |---------------------------------------------------------------| | tiMainAngleF NhlTFloat RCSG | | TextAngleF 0.00 | |---------------------------------------------------------------| | tiMainDirection NhlTTextDirection RCSG | | TextDirection "Across" | |---------------------------------------------------------------| | tiXAxisOn NhlTBoolean RCSG | | TiXAxisOn <Dynamic> | |---------------------------------------------------------------| | tiXAxisString NhlTString RCSG | | TiXAxisString "XAxis" | |---------------------------------------------------------------| | tiXAxisSide NhlTPosition RCSG | | TiXAxisSide "Bottom" | |---------------------------------------------------------------| | tiXAxisPosition NhlTPosition RCSG | | TiXAxisPosition "Center" | |---------------------------------------------------------------| | tiXAxisOffsetXF NhlTFloat RCSG | | TiXAxisOffsetXF 0.0 | |---------------------------------------------------------------| | tiXAxisOffsetYF NhlTFloat RCSG | | TiXAxisOffsetYF 0.0 | |---------------------------------------------------------------| | tiXAxisJust NhlTColorIndex RCSG | | TextJustification "CenterCenter" | |---------------------------------------------------------------| | tiXAxisFont NhlTFont RCSG | | Font 0 | |---------------------------------------------------------------| | tiXAxisFontColor NhlTColorIndex RCSG | | FontColor "Foreground" | |---------------------------------------------------------------| | tiXAxisFontHeightF NhlTFloat RCSG | | FontHeightF 0.025 | |---------------------------------------------------------------| | tiXAxisFontAspectF NhlTFloat RCSG | | FontAspectF 1.3125 | |---------------------------------------------------------------| | tiXAxisConstantSpacingF NhlTFloat RCSG | | TextConstantSpacingF 0.0 | |---------------------------------------------------------------| | tiXAxisFontThicknessF NhlTFloat RCSG | | FontThicknessF 1.0 | |---------------------------------------------------------------| | tiXAxisFuncCode NhlTCharacter RCSG | | TextFuncCode : | |---------------------------------------------------------------| | tiXAxisFontQuality NhlTFontQuality RCSG | | FontQuality "High" | |---------------------------------------------------------------| | tiXAxisAngleF NhlTFloat RCSG | | TextAngleF 0.0 | |---------------------------------------------------------------| | tiXAxisDirection NhlTTextDirection RCSG | | TextDirection "Across" | |---------------------------------------------------------------| | tiYAxisOn NhlTBoolean RCSG | | TiYAxisOn <Dynamic> | |---------------------------------------------------------------| | tiYAxisString NhlTString RCSG | | TiYAxisString "YAxis" | |---------------------------------------------------------------| | tiYAxisSide NhlTPosition RCSG | | TiYAxisSide "Left" | |---------------------------------------------------------------| | tiYAxisPosition NhlTPosition RCSG | | TiYAxisPosition "Center" | |---------------------------------------------------------------| | tiYAxisOffsetXF NhlTFloat RCSG | | TiYAxisOffsetXF 0.0 | |---------------------------------------------------------------| | tiYAxisOffsetYF NhlTFloat RCSG | | TiYAxisOffsetYF 0.0 | |---------------------------------------------------------------| | tiYAxisJust NhlTJustification RCSG | | TextJustification "CenterCenter" | |---------------------------------------------------------------| | tiYAxisFont NhlTFont RCSG | | Font 0 | |---------------------------------------------------------------| | tiYAxisFontColor NhlTColorIndex RCSG | | FontColor "Foreground" | |---------------------------------------------------------------| | tiYAxisFontHeightF NhlTFloat RCSG | | FontHeightF 0.025 | |---------------------------------------------------------------| | tiYAxisFontAspectF NhlTFloat RCSG | | FontAspectF 1.3125 | |---------------------------------------------------------------| | tiYAxisConstantSpacingF NhlTFloat RCSG | | TextConstantSpacingF 0.0 | |---------------------------------------------------------------| | tiYAxisFontThicknessF NhlTFloat RCSG | | FontThicknessF 1.0 | |---------------------------------------------------------------| | tiYAxisFuncCode NhlTCharacter RCSG | | TextFuncCode : | |---------------------------------------------------------------| | tiYAxisFontQuality NhlTFontQuality RCSG | | FontQuality "High" | |---------------------------------------------------------------| | tiYAxisAngleF NhlTFloat RCSG | | YAxisTextAngleF 90.0 | |---------------------------------------------------------------| | tiYAxisDirection NhlTTextDirection RCSG | | YAxisTextDirection "Across" | +---------------------------------------------------------------+
Names for the resources used to control the text attributes of the titles are derived in a consistent way from the corresponding TextItem resources: the individual title's name is prepended to the TextItem resource name. For example, the TextItem resource for setting the content string is txString. For its three titles, the Title object provides the resources tiMainString, tiXAxisString, and tiYAxisString. All other text attribute resources for the titles are constructed in the same fashion. However, note that Title uses its own scheme for positioning the titles relative to the viewport. Hence there are no resources that correspond to the TextItem txPosXF and txPosYF resources. Also, the Title object does not currently support perimeter outlines or background fill of the area occupied by the text string.
Top or Bottom. tiYAxisSide may be set
to Left or Right. The ti...Position
resources specify the initial position of the title justification point
along the chosen side. tiMainPosition and
tiXAxisPosition
allow the values Left, Center, and
Right, while tiYAxisPosition
accepts the values Bottom, Center, and
Top.
The resource tiDeltaF applies to all the titles, and specifies, in units of the title's current font height, how far out from the viewport edge the justification point of the titles should be displaced. Note that certain settings of the justification mode, angle, and direction may result in a portion of the title overlapping the Title viewport area. In this case, the title's position is adjusted farther outward such that no part of the title text remains inside the viewport. When the X-Axis title and the Main title share the same side of the viewport, the Main title's position is established outside the X-Axis title. The outer bounding line of the X-Axis title is in effect treated as a viewport boundary for the Main title.
From the positions thus established, you can displace the individual titles in any direction using the Title offset resources, tiMainOffsetXF, tiMainOffsetYF, tiXAxisOffsetXF, tiXAxisOffsetYF, tiYAxisOffsetXF, or tiYAxisOffsetYF. Since these resources are applied after the previously mentioned adjustment, they can be used to move the titles arbitrarily. It is possible, for instance, to move a title to a location within the viewport. All the offset resources use NDC units, their positive directions coinciding with the directions of the NDC system.
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