「The Vector Properties Dialog:Diagram Tab」の版間の差分

提供: OSGeo.JP Wiki
移動: 案内検索
(ページの作成: <H3> Diagram Tab </H3> <P> The Diagram tab allows you to add a grahic overlay to a vector layer. To activate this feature, open the Plugin Manager and select the Diagram Overlay…)
 
(ページの置換: '--~~~~このページは削除予定です。')
 
行1: 行1:
<H3>
+
--[[利用者:Sanak|Sanak]] 2009年10月4日 () 08:12 (UTC)このページは削除予定です。
Diagram Tab
+
</H3>
+
 
+
<P>
+
The Diagram tab allows you to add a grahic overlay to a vector layer.
+
To activate this feature, open the Plugin Manager and select the Diagram Overlay'
+
plugin. After this, there is a new tab in the vector Layer
+
Properties dialog where the settings for diagrams may be entered (see
+
figure&nbsp;<A HREF="#fig:diagramtab">13</A>).
+
 
+
<P>
+
 
+
<DIV ALIGN="CENTER"><A NAME="fig:diagramtab"></A><A NAME="519"></A>
+
<TABLE>
+
<CAPTION ALIGN="BOTTOM"><STRONG>Figure:</STRONG>
+
Vector properties dialog with diagram tab </CAPTION>
+
<TR><TD>
+
<DIV ALIGN="CENTER">
+
</DIV>
+
<P></P>
+
<DIV ALIGN="CENTER">  [clip=true, width=13cm]diagram_tab
+
 
+
</DIV></TD></TR>
+
</TABLE>
+
</DIV>
+
 
+
<P>
+
The current implementation of diagrams provides support for pie- and barcharts
+
and for linear scaling of the diagram size according to a classification
+
attribute. We will demonstrate an example and overlay the alaska boundary
+
layer a barchart diagramm showing some temperature data from a climate vector
+
layer. Both vector layers are part of the QGIS sample dataset (see
+
Section&nbsp;<A HREF="#label_sampledata"><IMG  ALIGN="BOTTOM" BORDER="1" ALT="[*]"
+
SRC="/usr/share/latex2html/icons/crossref.png"></A>.
+
 
+
<P>
+
 
+
<OL>
+
<LI>First click on the mActionAddOgrLayerLoad Vector icon,
+
browse to the QGIS sample dataset folder and load the two vector shape layers
+
alaska.shp and climate.shp.
+
</LI>
+
<LI>Double click the climate layer in the map legend to open the
+
Layer Properties dialog.
+
</LI>
+
<LI>Click on the Diagram Overlay and select Bar chart as
+
Diagram type.
+
</LI>
+
<LI>In the diagram we want to display the values of the three columns
+
T_F_JAN, T_F_JAN and T_F_MEAN. First select
+
T_F_JAN as Attributes and click Add attribute, then
+
T_F_JUL and finally T_F_MEAN. 
+
</LI>
+
<LI>For linear scaling of the diagram size we define T_F_JUL
+
as classification attribute.
+
</LI>
+
<LI>Now click on find maximum value, choose a size value and unit
+
and click Apply to display the diagram in the QGIS main window.
+
</LI>
+
<LI>You can now adapt the chart size, or change the attribute colors double
+
clicking on the color values in the attribute field.
+
Figure&nbsp;<A HREF="#fig:climatediagram">14</A> gives an impression.
+
</LI>
+
<LI>Finally click Ok.
+
</LI>
+
</OL>
+
 
+
<P>
+
 
+
<DIV ALIGN="CENTER"><A NAME="fig:climatediagram"></A><A NAME="548"></A>
+
<TABLE>
+
<CAPTION ALIGN="BOTTOM"><STRONG>Figure:</STRONG>
+
Diagram from temperature data overlayed on a map </CAPTION>
+
<TR><TD>
+
<DIV ALIGN="CENTER">
+
</DIV>
+
<P></P>
+
<DIV ALIGN="CENTER">  [clip=true, width=13cm]climate_diagram
+
 
+
</DIV></TD></TR>
+
</TABLE>
+
</DIV>
+

2009年10月4日 (日) 17:12時点における最新版

--Sanak 2009年10月4日 (日) 08:12 (UTC)このページは削除予定です。