App User Guide
Each property has a drop-down list of blocks that have been imaged.
You can expand the selected field to show individual blocks.
You can select all blocks within the field, individual blocks, or multiple blocks to view together. This selection will be reflected in the metrics shown in the histogram (discussed later).
You can navigate and move around the map by dragging the mouse and zoom in and out by using the mouse scroll wheel or the + and – keys.
If you are a member of different organizations, you can switch teams (see Figure 4) under your user profile (see Figure 5) to access other data sets.
The Data Layers button on the far left of the bar lets you see the data products included with your package for the specific blocks and date that you selected.
Select or de-select the data product you would like to view on the map by ticking the checkbox. The type of data products that can be selected depends on your subscription. Clicking on the data product name instead of the checkbox will deselect all other ticked checkboxes.
At the bottom of the data list, you will see Background Map View and a dropdown option. Other map views, like True Color and Infrared, are available here. Background maps are most visible when no data products are selected. A satellite image is the default background and is used when Background Map View is set to “None.”
Data Analysis
The “switch” icon on the Data Navigation bar allows you to view the absolute or relative mode.
In “absolute” mode, the colors are always fixed to particular values, which is important when comparing data between different blocks or dates.
In “relative” mode, the colors are stretched to the minimum and maximum values, which shows in-field differences more clearly.
Once in relative mode, you can select the number of color classes to view by using the Palette Tool (see Figure 11) and using the class slider (see Figure 12).
We suggest trying three to four color classes to group the data for ease of interpretation.
The Histogram on the Data Navigation bar will show statistical information of the data for the selected fields. As you select additional blocks to include at the left, the histogram and statistics will update to reflect the data from the selected blocks.
Statistics for selected blocks can be downloaded in the form of a spreadsheet by using the download buttons at the upper right of the chart.
The Filter Tool allows you to only view select data levels, to examine patterns within the data. Low vigor levels associated with areas along riverbeds may indicate problem areas, such as disease. High vigor areas may be susceptible to fungal diseases. When the filter icon is orange, the filter is active. To go back to normal view, click “Clear Filter.”
Click the color bar to also filter. Clicking individual colors will isolate those vines. Click the color bar again to go back to normal view.
To use the Measurement Tools, click the triangle on the toolbar. A distance and area option will pop up on the left of the screen.
Select the tool you would like. When using the area tool, be sure to close the polygon by clicking back to the beginning point. Double click the end point when using the distance tool.
Field Notes
The note feature allows users to make field notes based on ground observations or to direct scouts to areas of concern. Two steps are required for implementation. The first is to set up the note forms under the username on the top right of your screen. Select “Manage Forms” and “New Note.”
Here you will create a form. You can name the property (e.g., redblotch, leafroll) and data type (e.g., text, numeric, checkbox). You can set up multiple data types in one form as well.
Once you have the form setup, save this template.
To use the form, go to the field notes icon on the right side of the screen (see Figure 19).
You can select the note type (see Figure 20), and when you hit “create” it will ask you to position the map under the marker (see Figure 21). When in the field, it will position the note at your current location.
Map Downloads
The data layers can be downloaded as either a PDF report or GIS data by navigating to the top-right menu and selecting “Download Data.” Reports can be configured by selecting data layers and individual block views. Outputs are in PDF format.
To export a geoPDF version of the zone maps, select PureVine-Zones.pdf. The Avenza app allows users to view their location on the output when the geoPDF is loaded in the software. This allows users to track their location on the map in areas where cell service is poor.
Other data downloads are in the form of shapefiles and can be used in GIS software.