To make a georeferenced map or access general settings for Grid+, go to the Tools menu as shown in Figure 1. The function of each option is described in the table below.
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|---|---|---|---|---|
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Figure 1 Tools menu options.
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| Options | Description |
|---|---|
| Image Georeferencing | This option allows the user to make a background georeferenced map (described in detail below). |
| Coordinate Conversion | The option allows converting from a coordinate system to another coordinate system for a point. (described in detail below). |
| Unit Conversion | The option allows converting length, area, volume, etc from a unit to another unit. (described in detail below). |
| Settings | General settings for Grid+ |
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Figure 6 RMC options in the Image Files frame.
Coordinate Conversion
The option allows converting from a coordinate system to another coordinate system for a point. The user should select the input projection and unit for the Convert from Coordinate System frame first then enter the values in the text box. Next, select the target projection and unit for the Convert to Coordinate System frame then click the Convert button to take place as shown in Figure 7. The UTM Zone in the Convert to Coordinate System frame must be defined when converting from Longitude, Latitude to UTM zone in meter or foot.
Anchor Figure 7 Figure 7
Figure 7. Coordinate Conversion.
Unit Conversion
Select the unit conversion, the Unit Conversion form displays as Figure 8. It allows converting length, area, volume, etc from a unit to another unit. Firstly the user selects a unit from the drop-down list for Convert (e.g Length), next select from the drop-down list for the From Unit (meter(m)), then enter the value want to convert in the Input Value, next select the target unit for the To Unit (e.g foot (ft)), we can set the number of significant digits by entering a number (e.g 3). Finally, click the Convert button, the output value will be shown in the Output Value.
Anchor Figure 8 Figure 8
Figure 8. Unit Conversion.
Settings
Selecting the Settings from the Tools menu will show the Global Settings form as shown in Figure 79. The values in this form are the default settings.
Anchor Figure 79 Figure 79
Figure 7 9 Grid+ general settings.