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Gil

GMS Development Team
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Posts posted by Gil

  1. Hi Simon,

    We are aware of this issue but have not yet been able to resolve it.

    For now, I think the best approach is to export the model you created to a python script that with minor edits would enable you to batch the process.

    Attached is an example model you can use as your base. You will probably need some minor edits to make sure the paths in the model point to the right location on your computer. You can run the script in batch mode from the attached toolbox in Arc Map.

    Let us know if you have any questions.

    Best regards,

    Gil

    water level map script example.zip

  2. Hi,

    Yes, you will need to have ArcGIS 10 to do the volume calculation. In ArcGIS 10 there is a new toolset as part of 3D Analyst named 3D Features, in there you have different tools for 3D operations. The Add Z Information tool will allow you to calculate a volume on a multipatch.

    Gil

  3. This is part of a separate post by Simon:

    "when i try to pull say one cross section into a new map im not able to use or set up a customized grid where the major and minor grid line shape files are able to create the grid, it automatically does this for me when i create the cross section in the fist instance. Is this likely to be an issue with my extensions or something."

  4. Hi,

    Regarding the first topic - i don't think the problem is because you are using 9.3. looks like the tool is not able to read values from the DEM raster. Make sure that the raster is projected in the same coordinate system as the section lines and outcrop polygons. Also make sure you are using an appropriate discretization distance.

    If you check both of these and are still having a problem, please send me the map + geodatabase + raster and i will take a look.

    Regarding the grid lines - i opened a separate post for this:

    http://aquaveo.invisionzone.com/index.php?showtopic=1335

    Please feel free to ask as many questions as necessary. We learn a lot from our users.

    Gil

  5. Hi,

    You need to first create a new feature class that is referenced in the XS2D Catalog table. The drop down list you refer to is created from the catalog table. There is a tool for this named Create XS2D Line Feature Class that is located in the XS2D Editor toolset.

    You can take a look at the tutorial named Creating 2D Cross Sections, look for the section named "Adding Data From Geologic Maps" it includes a detailed description of the process.

    Gil

  6. ok so i sorted the problem - it was an issue with the coordinate system - im in the southern hemisphere so that may have something to do with it? but the coordinate system i was useing was to restrictive ive since changed it to lamberts and its working fine

    From looking at your data, the problem was that the domain defined for the feature dataset was too small. Especially the Min Y that was 1900.

    Gil

  7. yep thats what it was - thanks

    also just wondering does the wizard have trouble running if my bore has <null> eastings and northings? im just importing text into the empty bore feature data set and it works fine but it doenst keep the eastings and northings it just fills it with null - i think this is causing problems when im trying to determine my extent for the cross sections maybe?

    The easting/northing attributes of the bores shouldn’t matter. The XS2D Wizard uses the coordinates from the geometries of the bores and not from the attributes. If the bores appear in the right location on the map and everything is in the right projection (if you put the section lines and bores in the same feature dataset and make sure the projection is correct you shouldn’t have any problem with this) then the wizard should work fine.

    If you want the easting/northing values to be added to the bores as attributes you need to create fields for them in the Bore feature class and match these fields in the import process.

    Gil

  8. ok i got this working finally was just a case of GIS being GIS - i did the same thing i already did 10 times infront of someone else and bang - it worked.

    But now im having a bigger problem, ive created my section lines and have selected wells within a distance of my section lines, click on the 2D cross section wizard, click on my section line and nothing happens - the wizard isnt launching. Ive copied all my stuff into a new map and still the same problem - HELP

    Make sure to assign a HydroID to your section line, if the HydroID is Null the Wizard will not execute (this will be fixed to give an error message in the next release of the Arc Hydro Groundwater tools).

  9. Hi Dan,

    Currently the tool will only process a cross section if it is within the extent of all rasters specified in the raster catalog. So the limit is the raster with the smallest extent. However you can "trick" the tool to process all cross sections by changing the selected features in the section line feature class and changing the clip/fill values in the GeoRasters raster catalog.

    Here is an example:

    We have 3 rasters where the top raster has a smaller extent than the two other rasteras shown in Figure 1. also notice there are 3 section lines and one of the section lines extends beyond the extent of the smaller raster.

    post-100-130760926688_thumb.png

    If we run the tool for all 3 section lines we will only get GeoSection features for the section lines that are within the extent of the smaller raster, as shown in Figure 2.

    post-100-130760931538_thumb.png

    To create GeoSections for the section line that extends beyond the extent of the top raster we can disable that raster by going into the GeoRasters raster catalog and setting the clip and fill attributes to 0 (as shown in Figure 3). When setting the values to 0 the tool will ignore this raster in the filling process.

    post-100-13076093207_thumb.png

    The final step will be to select only the section line that we want to process and rerun the Raster To GeoSections tool (make sure that the append option is active so you don't overwrite the GeoSections already created). The tool will only run on the selected section lines and will create the GeoSection features for that cross section. The only drawback is that there will be no GeoSection feature created for the top raster as it was disabled from the process. The final results are shown in Figure 4.

    post-100-130760932628_thumb.png

    Gil

  10. When creating a new Arc Hydro Groundwater (AHGW) geodatabase using the GP tools users do not have control over the XY and Z domain extents. One of our users from Brazil has found a way to set the coordinate systems and still maintain control of setting the extent of the domain:

    1. Create a blank Arc Hydro Groundwater (AHGW) geodatabase with no spatial reference set.
    2. Using Arc Catalog define the spatial reference for the feature datasets - during the process of defining the spatial reference you can modify the Min and Max domain values (XY and Z) so the spatial reference can contain your 3D data.
    3. Load data and apply the AHGW tools to create features.

  11. When creating 3D features using the Arc Hydro Groundwater tools it is important to define your coordinate systems correctly. A few common mistakes that lead to errors in applying the tools are:

    • The vertical coordinate system is not defined.
    • The vertical coordinate system is defined incorrectly. A few examples are:

      • Tools creating 3D features require that your XY coordinate system is a projected coordinate system. The tools will not work with data defined in geographic coordinate systems as the vertical information cannot be defined in geographic coordinates.
      • The vertical coordinate system units should match the units of the XY coordinate system. For example if you are using a projection with units of meters your vertical units should be defined in meters as well.
      • The vertical coordinate system units do not match the units for of the data. If you have borehole data with depth defined in feet you need your vertical coordinate system to be in feet. If your XY coordinate system is in meters you should either project the data into feet or convert the vertical data to meters.

      [*]If you are using the XS2D component make sure that your domain is large enough:

      • When creating cross sections the coordinates will start at 0 or even at a negative value (because the cross section coordinates are defined along the section line). So you need to make sure that Min and Max X are defined such that cross sections can be created.
      • Remember to account for the vertical exaggeration. If you apply a vertical exaggeration of 20 you need to make sure that the Min and Max Y values are defined to support creating features with the exaggeration applied.

    Remember that you need to define the domain when creating the feature dataset where your feature classes will be created. Once the feature dataset is created you cannot modify the domain.

    If you want to check the domain values before creating the feature dataset uncheck the Accept default resolution and domain extent option (this is part of the process when creating a new feature dataset in ArcCatalog).

    post-100-130156990383_thumb.png

    You will then go through an interface that allows you to define the Min and Maz Z values.

    post-100-130156991885_thumb.png

    Another option to control the Z coordinate system is to use the Create Feature Dataset GP tool. When using this tool you have the option to specify Min and Maz Z values for your feature dataset.

    Under the Environments -> Geodatabase Settings you have the option to define the Z domain.

    post-100-13015699317_thumb.png

  12. GMS currently does not include that option. However you can use the Subsurface Analyst tools (part of Arc Hydro Groundwater) to do this in ArcGIS.

    You have the capability to export features from GMS into the ArcGIS environment and you can then use the image registration tools available in Subsurface Analyst to georeference an existing cross section image and compare it with your GMS model.

    On top of that, once your GMS model is in ArcGIS you can view the model in relation with other common GIS datasets.

    See the Arc Hydro Groundwater tutorials for some examples on how to create cross sections and how to georeference cross section images: http://www.aquaveo.com/ahgw-learning

    Gil

  13. Arc Hydro Groundwater version 3.0 is now available for download from our website:

    http://www.aquaveo.com/archydro-groundwater

    The release includes some new tools (as well as the regular improvements and bug fixes):

    • New Tools for Managing Unique ID's - Two new tools have been added for managing unique ID values in an Arc Hydro Groundwater geodatabase.
    • BoreholeLog to Points - This is a new tool that allows you to create 3D points from the BoreholeLog table. The 3D point features can be used to interpolate to rasters for generating GeoSection or GeoVolume features.

    For a full list of the new features available in 3.0 please visit the AHGW wiki:

    http://www.archydrogw.com/ahgw/What%27s_New_in_Arc_Hydro_Groundwater_3.0.0

  14. Hi,

    Please notice that in version 3.0 of the Arc Hydro Groundwater tools there is a new Assign HydroID GW Tool:

    http://www.archydrogw.com/ahgw/What%27s_New_in_Arc_Hydro_Groundwater_3.0.0

    You can also call this tool tool from a python script.

    With the new tool you don't need the Arc Hydro (surface water) tools or the ApFramework installed as you would in previous versions.

    Gil

  15. Hi,

    I have not downloaded the 1.2 version yet so forgive me if this is covered in the new version documentation.

    Are there provisions in the geodatabase for logging contaminates associated with a well? I am starting a groundwater study in a closed basin. I am hearing unofficially of high levels of various "bad" things in the water table. Although not part of the official groundwater study, I would like to include these in the records.

    Thanks

    Hi,

    I am not sure what you mean by provisions, but the Arc Hydro Groundwater data model includes tables designed to store time series related to wells.

    You can store your contaminant data in the TimeSeries table. You might need to customize it a bit to fit your data, but the basic structure is available.

    Let me know if you need more clarification.

    Gil

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