Ichihara-shi WebGIS Operation Manual

WEBGIS?

Measurement

Measurement on a map.
* Measurement is on GIS environment,
so please treat the measured value as a reference only.
They should not be used forany official estimation or calculation.

Measurement control

Measurement type
距離
Distance
Show the distance between clicked points.
* Minimum 2 points are required.
Double-click to fix the measurement.
Right-click to display the context menu.
距離(曲線)
Distance (curve)
Shows the length of the trajectory of a cursor on the map.
面積
Area
Display the area and the length of the outline of a polygon created by clicking points on the map.
* Minimum 3 points are required.
Double-click to fix the measurement.
Right-click to display the context menu.
同心円
Concentric circle
Create a concentric circle centered on the clicked position.
* The concentric circle settings are described separately.
削除
Delete
All the figures created for the measurement are deleted.

Control of the concentric circle

枠線の太さ

Select the thickness of the outline of concentric circle.


枠線の色

Choose the color of the outline of the concentric circle.
Choose color by using a color map or by entering RGB value.


円の半径

Enter the radius of the concentric circle (in meter).


同心円の数

Select the number of concentric circles.


最小円半径

Enter the radius of the smallest circle of the concentric circle (unit: meter).


同心円の透過率

Sets the transparency of concentric circles.
Specify the transparency by using a scroll bar or entering a value in the text box.

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