iCMTGIS PRO automatically includes the Topic name in the Feature ID. Can I assign my own Feature numbers?

The ID field will always take on the Feature Topic Name (e.g. tree001). If you would like a field that just shows a numeric ID, you can define an Attribute (such as ID_NO) for the Feature Topic. However, you will need to enter the number into this field when you collect each point, or you can enter it later via the Sheet View.

Another solution is to use Excel to strip the prefix after the data has been collected.

Is it possible to build a Feature List externally?

“. . . I will be mapping stream habitat features and want to build a feature list with attributes for the mapping. Can I have multiple attributes for each feature? I would like to pick a feature (e.g. pool, riffle, glide, etc) and then have additional attribute fields that I can fill in with data such as width, depth, large woody debris and substrate. Is it possible to build a list externally and import it to a job?”

To answer your first question, yes, you can build a Feature List with multiple Attributes and user-defined Values to facilitate data collection.

In the iCMTGIS PRO app, you will tap on the GPS icon at the top then select Feature List and tap on New to create a new Feature List. You will add Pool, Riffle, Glide, etc. as new Feature Topics (“Feature”). Select Point type for points. If you are interested to get the length of the glides, for example, then select the type Line. For each highlighted Feature Topic, you can add the desired Attributes and assign the desired Values to the drop-down list. You can follow the example in the Help document to create your own Feature List. Afterwards, go back to the Job setup screen to select your Feature List to be associated with your Job.

It’s rather straightforward to use an iPad to create the Feature List. To answer your second question, we do have a PC-GIS X software program for use on a PC, which will let you create a Feature List that you can transfer to the iCMTGIS PRO. PC-GIS X will let you open Jobs created in iCMTGIS PRO to work with it further. It provides a nice Print Preview function to let you enhance the map (such as by adding the north arrow and scale bar symbols) then print it to PDF or printer.

Exporting Shapefiles and DXF

“I am running iCMTGIS Pro, and trying to export to a shapefile into a folder, and copy that onto my pc. . . . I cannot drag and drop the folder from itunes to my pc (windows). . . I am trying to export everything to autocad, but I cannot use the dxf export due to it not saving the sub-attributes of my points/lines.”

1. In iTunes, please scroll down then click on the “Save To” button to save the selected file or folder to your PC.

2. When exporting to DXF, please mark the 3D and In Block options. After you select In Block, the “With Attribute” check box will be displayed. You can mark that check box to export the Attributes/Values to DXF.

How to record the RMS value displayed in iCMTGIS PRO?

In the “Enable the External GPS” mode, iCMTGIS PRO can display on the GPS Status line the RMS value sent over by such GPS receivers as the iSXBlue II GNSS, SXBlue Platinum and the EOS Arrow series GNSS receivers.

Some iCMTGIS PRO users have requested the ability to save the GPS RMS information along with the recorded Features. We are working on adding the RMS value and some other GPS status information to the built-in Attributes List. When the new built-in Attributes List is available, you will be able to select the RMS from the list and add it to the Feature Topic as an Attribute. Then the RMS values for the Features recorded via the GPS Data Collection function will show up in Sheet View, and you will be able to export them along with the other Feature information.

Feature Attribution in iCMTGIS III

“When we start collecting data by Collect button a separate window is displayed to the bottom of the screen, showing our added field names, but when we store a point, there is no data seen in that table, however if we use the table icon at the left top of the iCMT, the data is present there, this may give a bad impact if this is without reason.”

The Attribute fields you’ve added to a Topic are for tagging any Features in the Job file.

The Attribute fields for GPS Data Collection need to be defined in a Feature List, which you can associate with any Job file.

When you do Job – Open Job, you will see the Feature List field. Right now it’s probably showing “NONE”. You could select the built-in Feature List “utilities” (in iCMTGIS III) to work with and collect data for the Features defined in that Feature List.

To make your own Feature List with your own Features and Attributes/Values, please select GPS then select Feature List. Here After you select “New”, you can define the type of Features (Point, Line or Area), the data collection parameters and the Attributes and predefined Values for those Features.

While you collect data using the Feature List, you can select or enter the Attributes for the Feature being recorded. These Attribute/Values will display in Sheet View at the bottom of the screen (if you have activated Sheet View display by tapping the Sheet View icon on the right side at the top.)

iCMTGIS III for Tree Inventory

“I am searching for a mobile GIS app to enable me to do some forest inventory. The property is about 100 acres. I am hoping you can help me determine which is any of your apps will be suitable: iCMGIS II or iCMTGIS III or iCMTGIS Pro. I invested in an Ipad and Bad Elf Pro+ Bluetooth GPS. I considered competing products GIS Pro and iGIS but ran into issues. I need to inventory tree features and collect attribute data by walking 20 meter (60 feet) wide strips on the property.
-the GPS function of the app guide me along lines 20 or 40 meters apart
-Import an image and geo-reference it for use in navigating my transects. I can convert the attached PDF to .tiff with adobe acrobat. I cannot afford to buy one of your mobile apps and also your PC-GIS, just to enable geo-referencing, so I hope there is a more affordable solution for that? I have used the app MapTiler to georeferenced the map.
– GIS function of recording the location of features and attribute data.
-ability to customise the data input tables for layer attributes. To name variables eg: tree number, species, diameter, height,
– ideally attach photographs to the records.
-I need to be able to export the GIS data to excel or csv file to process the data.”

Ideally there would be a forest inventory app for the iPad that works similar to our CMT-Forester 10 (for PC) and CE-CRUISE (for Windows Mobile PDA) software package. These apps will work up the weight or volume based on the timber cruising and the computation method used. However, we have not produced such a timber cruising app for use on the iPad.

As you will be exporting the tree data and do the computation elsewhere, iCMTGIS III may be a viable solution for you.

iCMTGIS III will let you import a Geotiff (geo-referenced .tif) image file for use as an off-line background image. Our PC-GIS X provides the function for geo-referencing a raster image. If you purchase iCMTGIS III from Apple, we can provide the PC-GIS X to you at a discounted price.

iCMTGIS III provides the Point Stakeout function to guide you to a location, and the Line Stakeout function to guide you along lines.

It allows you to take and attach photos to Features.

It will let you export Point Feature data to a text file that you can import into Excel.

It provides GIS functions for recording the location of Features and Attribute data.

It will let you customize the data input tables for layer attributes, and name variables eg: “tree number, species, diameter, height,” As you are collecting tree data for various transects, you will also need to add the Transect_No as an Attribute.

Please keep in mind that the mapping app will treat each tree as a separate Point Feature. In other words, it needs location information for each tree. Here are two ways to associate each tree with a location:

1. Record GPS position data for each tree and record Attribute/Values based on a Feature List. This may be more time-consuming, and you most likely are not interested in the actual location of each and every tree.

2. Define the Attributes for the Tree Topic layer. Roughly digitize a tree by tapping on the Add Point manually icon then tapping on the PickGPS icon. This will add a new record to the Sheet View for that Topic, and you can enter the Attribute information for the tree. Repeat for all trees to be inventoried.

When data for the Tree Topic has been collected, you can export it to a text file for your PC software to process.

Which of your apps will let me select from a drop-down list in a table?

The Feature List facility in iCMTGIS II and iGPSGIS II will let you select an Attribute Value from a drop-down list while doing GPS mapping and data collection.

The Utility Data Collection, Farming GPS GIS II and Forester GPS GIS II apps provide a newer Feature List structure that can be used for GPS mapping/data collection as well as data attribution in the Sheet View table.

Farming GPS GIS and Forester GPS GIS do not provide the GPS Data Collection function but provide the new Feature List capability. This means that you can set up the Feature List with the frequently used descriptions and/or values for each Feature Topic. After you have added the Feature Topic from the Feature List to your job map and digitized some Features, you will be able to easily add a description to a Feature by selecting it from a drop-down list in the Sheet View table.

Coming soon is a form design app named Wetland – Stakeout. With this app, you will be able to design your own data collection sheet to record such things as the species, DBH and the number of log segments for each tree at a point. For each variable in the sheet, such as  the species, you can define a drop-down list.

How to create new point, line and polygon features with associated attribute fields and values?

There are a few ways of adding Points, Lines and Polygon Features to a map job.

1) Digitization

You will first need to create a new Topic layer on which to store the Features. Specify the correct topic type (Point, Line or Area) for the New Topic. Also, Farming GPS GIS, Forester GPS GIS and Utility Data Collection will let you add a Topic from the Feature List associated with the map job.

The Tools menu provides the Add Point manually, Add Line manually and Add Area manually functions. When a Point Topic is active, you can digitize Point Features. When a Line Topic is active, you can digitize Line Features. When an Area Topic is active, you can digitize Area Features.

Use the Edit Topic function to add Attribute fields to the Topic.

After digitizing the Features, you can turn on Sheet View (the right-most icon at the top) and enter the values. Farming GPS GIS, Forester GPS GIS and Utility Data Collection provide the ability to select pre-defined attribute values from within the Sheet View.

2) GPS Data Collection

The iCMTGIS II, iGPSGIS II and Utility Data Collection software apps will let you map points, lines and areas using GPS. When you collect GPS data, you can record the attribute values at the same time.

If you have a Feature List defined and associated with a job, during GPS data collection you can simply select one of the Values instead of having to enter the data by hand. The Feature List function is listed under GPS. It lets you define the Feature Topic Layers, the Attributes and the Values for the Attributes as well as the GPS data collection parameters.

Select Main Menu\Job\Current Job to get to the Job Setup screen. Here is where you can select the Feature List to be associated with the active Job. The iCMTGIS II, iGPSGIS II and Utility Data Collection software provide a Feature List file named “park.fbr” as an example.

The GPS data collection function is provided under GPS. Please see the built-in Help document for the procedure for recording various types of points, lines and areas. This document is available in PDF format upon request.

3) For Point Features, there are also the Traverse method under data collection and the Add Point by Coordinates function that you can use to create new points.

Setting up the Attributes for a Feature Topic

Previously (see article posted on 7/21/11), we created a new Feature List and defined the GPS  data collection parameters for two Point Feature Topics. Now let’s set up the data fields required for collecting the GIS data of interest.

First, tap on the “GPS” icon, select Feature List , then tap the “Open” button and select the file named ht.fbr. Tap the green check mark at the top to confirm the selection.

You should see our two Feature Topics: “Trees” and “Hydrants”, and the red highlight is on the “Trees” Topic.

To define the Attributes for the currently highlighted Topic, tap the Attribute tab at the bottom. The Attributes displayed are from the previous “Tree” Topic that we have renamed to “Trees”. The Attributes we want are: Street Name, Species and Size. Therefore, please highlight “Approx. Age” and tap the Delete button. Do the same for “Diameter”.

Now, tap the Insert button and enter “Street Name” in the Attribute field. Double-tap the field to call up the virtual keyboard. When done with entering the data, tap an empty spot on the screen to turn off the virtual keyboard. For the Type field, we will use the default “List” type.

Highlight “Species” then tap the Add button to add “Size” as the third Attribute.

Tap the Save button often to save your work.

The next step is to populate the list of Values for each Attribute. This will help tremendously with data collection because it will allow you to select from the list of predefined descriptions rather than having to type the description by hand every time you record a Point Feature.

To do so, first tap the Feature tab at the bottom to display the Feature Topics in ht.fbr. With the “Trees” Feature Topic highlighted , tap the Values tab at the bottom of the screen. Tap on Add then enter a street name, such as “Adams”. Repeat to add a few other street names. (You will find that it will be much easier to set up a long list of values by using the PC-GIS 09 software then transferring the Feature List to the iCMTGIS. PC-GIS 09 will also let you import and export the Feature List data in .DBF file format.)

When done, tap the Attributes tab and highlight “Species”. Tap the Value tab then add a few tree species, such as “Birch”, “Elm” and ” Magnolia”.

For the “Size” Attribute, define the Values “Tall”, “Medium” and “Short”.

Tap the Save button to save your work.

Tap the Feature tab at the bottom to display the list of Feature Topics in ht.fbr. Follow the above procedure to define the Attributes “Type” and “Condition” for the Fire Hydrant Feature Topic. For Type, define the Values “A” and “B”. For condition, define the Values “Pass”, “Maintenance needed”, and “Non-functional”.

Tap the green check mark at the top and confirm to save the Feature List and close it.