Gocad 2009 download

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Seismic Attributes Learn More. StratEarth Learn More. Stratimagic Learn More. In this particular case, this is the Attribute toolbar for a surface object. This toolbar will contain graphic attributes such as display color, name, size, and so on specific to the selected object.

With this. This toolbar has only one function; it displays the coordinates x, y, z of the pointer in the 3D Camera when the Get XYZ Coordinate tool is in effect on the Camera Tools toolbar. You will see the Gocad menu bar near the top of the Gocad window. It contains commands for managing files, some editing operations, opening windows or special Gocad applications, deleting or renaming objects, getting help and information about Gocad Mining Suite, and so on.

The tasks you can perform using this menu are not specific to any particular type of object. You will see the Commands menu bar near the top of the Gocad window.

With this menu bar, you can access commands for creating and editing objects. The Commands menu bar is really several menu bars in one. Each one relates to a type of object or modelling activity. When you 18 Introduction to Gocad for Mining. For example, below is the menu bar for Surface objects. The default menu bar is the General menu bar. It has five menus that contain some of the most commonly used commands, relating to various types of objects. Change the Commands menu bar Click General to expand the menu, and then click the Surface menu bar.

The menu bar changes to display the Surface menu bar. It has eight menus containing commands that relate only to surface objects. For example, the New menu contains commands for creating a surface; it does not contain commands for creating a curve.

Move a toolbar or menu bar For a docked toolbar or menu bar, drag the handle the pointer changes to the move symbol to a new location. Note If you drag a toolbar to the top, left, right, or bottom of the window, the toolbar "snaps" into place docking. You can also dock menu bars at the top or bottom of the window. Quickly dock or undock a toolbar or menu bar For a docked toolbar or menu bar, double-click the handle. The toolbar or menu bar changes to a floating toolbar or menu bar.

Introduction to Gocad for Mining For a toolbar, it becomes docked at the top, left, right, or bottom of the Gocad window. Or, for a menu bar, it becomes docked at the top or bottom of the window.

Furthermore, often times simply importing the data in Gocads 3D environment and having a look at it may draw your attention to discrepancies. Whether these are due to data entry errors the dip direction of a structure was reversed degrees or inconsistencies on the continuity of a geological contact from one cross section to another, Gocad will help you become aware of such issues.

The simple steps of importing your data in Gocad may highlight critical problems. In a Gocad project, the first elements you need are objects. During modelling, you may use many types of objects.

In addition to creating objects, you can bring them in by loading existing object files or importing objects exported from other programs. After you create objects or bring them into your project, you can display and edit objects; create new objects by using existing objects; and save, export, search for, and organize objects. In this lesson, you will learn how to import, load, and save objects and open and save Gocad projects. In the following section, you will learn how to manipulate all the data you will import here.

Gocad Mining Suite comprises several import filters for importing numerous file formatsfor example, you can import your topography, data from your digitized cross sections, your drillhole database, geochem results, geophysical data from grids or line surveys, raw data files from other software products, etc.

When you import data, you can create objects, change objects by overwriting them, or add or overwrite property data associated with objects.

Importing data from an external source requires knowledge of the type of data you are importing and the application used to create the data. In other words, it is important that you are familiar with your data before bringing it into Gocad Mining Suite, because you will make choices that depend on the nature of the data. In this exercise, you will have an overview of how to import the following types of data: Digital Elevation Data DEM Cultural data Section interpretations Lithological interpretations Drillhole data Geophysical data.

We will not go into great detail and try every import option available in Gocad. Instead, well go through various imports in order to give you an idea of how the import mechanism works so you are ready to tackle importing your own data once the training is over.

CSV, space and tab delimited files can be imported using this utility. The object will be named with the filename. The filter imports the data file. And then select the check box next to DEM. The pointsSet appears in the 3D Camera. The pointsSet should look similar to the figure. If so, you have successfully imported your topography as a pointsSet and displayed it in the 3D Camera. Import SHP files e. In Gocad, typical uses of this kind of information include identifying location information such as the boundaries of lease blocks, the location of rivers, roads, powerlines, etc.

In this section, you will learn about the. About importing a. All three files are necessary to import the data. With the SHP importer, you can use the data in a. In the following exercise, you will import curves representing a river and some roads from a.

Then, click Open. The new curves appear in the Object list of the Object Tree under the Curve category. Repeat the above steps, this time selecting roads. On the Camera View toolbar, click. The display in the 3D Camera changes to show the curves roughly in the center of the view.

Click Change View next to , and then click View from North. The display in the 3D Camera changes to show the view of the curves from the north direction.

In the 3D Camera, drag with the left mouse button slightly down and to the right to rotate the view of the curves. The curves should look similar to the figure above. If so, you have successfully imported. Import DXF files e. For importing into Gocad, you will typically use files that contain data in the form of data points, lines, or curves. With the DXF importer, you can use the data in a. In the following exercise, you will import cross sections from a.

Import a. The import filter fills in the File name box with the selected path and file name. If there are layers in the. Note: Select the Gocad object creation strategy you need with the import layer s as radio buttons: Selecting import as PointsSet overrides the one-to-one conversion between AutoCAD entities and Gocad Objects and imports every object as a PointsSet. This applies to all entities on the selected layers. To combine all entities of a given layer and type into one Gocad object, select single object from the import as method.

If you prefer to keep each of the entities of a layer and type as separate objects, select multiple objects from the import as method. To gather all objects of a particular type on the selected layers under a general Gocad variable select object group from the import as method.

Notes The filter imports the data and creates a Curve object for each layer in the. The new objects appear in the Object list of the Object Tree under the Curve category.

View the curves in the 3D Camera 1. The curve should look similar to the figure. If so, you have successfully imported section interpretations as curves and displayed them in the 3D Camera. Import TRI files e. Rather than export the file from an external piece of software to a. In this case, a Gemcom. TRI file will be imported. TRI file There are many modelling packages available that allow the construction of triangulated surfaces with just as many file formats.

They all have one thing in common 3 points in space that are connected to make triangles. In the. TRI file, each line in the file contains the three points that make up each triangle. In the following exercise, you will import a Gemcom solid from a. TRI file to create a closed Surface object in Gocad. On the Camera View toolbar, click Global View. The surface should look similar to the figure. If so, you have successfully imported a Gemcom.

TRI file as a surface and displayed it in the camera. Import ASCII drillhole data You can import several types of drillhole data, including paths, logs property data , markers, deviations, and geology. In this section, you will learn about the requirements to import drillhole data into Gocad. Please refer to Appendix A2 for file formats.

Dont be surprised to see the word well in the menus, and remember that they apply to your drillholes. Each type of information location, deviation, geology, properties is imported using an ASCII import option. When importing drillhole geology information into Gocad, you are presented with an array of options as to how this information is supported on the drillholes:.

Markers Markers are disks that represent the contact between two units. They can be placed at the top of bottom of the interval, this is up to the user. Markers can be used to create a surface or to adjust the shape of a contact between section interpretations. Zones Zones colour the path of the drillhole with a colour that represents the lithological unit. Zones and markers generally have the same colour which are initially randomly assigned. The use of a classification look-up table affords the user control over the colours used.

Classifications Classifications are most frequently used to identify lithologies and are an association between a discrete value and a name colour combination. Creation of a classification also creates a corresponding colourmap. Interval Log Interval properties are those properties that have a single value assigned the sample interval. Assays and lithogeochemical analyses are examples of interval properties. Note: An Interval Property has a constant value over a defined from-to interval. They are displayed as histograms coloured by the property colourmap.

A Continuous Property has a value applied to a sepcifiec deth down the hole and is displayed as a line log. Physical rock properties are examples of continuous properties. Here, you have an option to load the geology markers as the tops or the bottoms of units. In this particular case, load them in as bottoms i. Check Zones, Regions, Merge similar geology units and Apply classification.

The classification will be created on import from the geology file, we will adjust the colours later. Turn on Show statistics before import. Before the import is executed, statistics for all the selected files are displayed; a very useful piece of information for quality checks.

If the information does not correspond to what you had in mind, you should review your files before importing them. Notes 8. Click on OK. The drillholes are imported and placed in a group called drillholes. Expand the Group category in the Object list, and then right click on the drillhole group object.

For the moment, we will concern ourselves with markers, zones and logs. Turn on all the markers and zones by right-clicking on each label and selecting show all. Colours applied to the markers and zones are randomly generated on import and applied from the classification. Generally, these randomly assigned colours are not the colours that you might want applied to your geological units.

The classification created when the drillhole geology file was imported and the resulting colourmap can be edited and then reapplied to the geological information used in the project.

Editing the Classification At the bottom of the object tree are the Resources. The resources list contains object that are used in the modeling process to classify, analyse and check the quality of your Gocad objects..

Select edit from the contectural menu. The Code field is the discrete value assigned to the geology Name. This later becomes the geology colourmap.

The colours can be changed by clicking on the geology swatches. The corresponding colourmap is updated at the same time. Do this now, clicking OK when done, the colourmap will update automatically. Note that the pattern options arent activated. Go to the Well menu bar, navigate to Tools Update Marker and Zone Colours On Well Group, select Geology from the classification pulldown, then click Apply to update the marker and zone colours on the drillhole objects.

Import ASCII drillhole logs To add a property to drillholes that have already been imported, there is no need to re-import all your drillholes. Simply add the data to the already existing drillholes in Gocad. To to list all the available logs on the drillhole, expand the the logs category for that drillholes group. Check K2O. The log should appear. Continuous properties are displayed as a line log which interval properties are displayed as coloured histograms.

Import Geosoft XYZ files e. About importing Geosoft XYZ data Respecting the Input file format, each group of connected-points corresponding to the same Geosoft line, are converted to a Gocad Curve portion if they are preceded by one of the following labels: line base tie trend test.

The command supports both 2D and 3D input files. Simply select the appropriate radio button. The third column of a 3D file corresponds to Z coordinates and is read as a property in a 2D file. The object appears in the Object list of the Object Tree under the Curve category. View the Curve object in the 3D Camera 1. The curve object appears in the 3D camera. The curves should look similar to the figure. If so, you have successfully imported a Geosoft. XYZ file as a curve and displayed it in the camera.

Manipulating the data will come soon; in the next section. Select the check box next to Gravity. If so, you have successfully imported your gravity station data as a pointsSet and displayed it in the 3D Camera. Import Geosoft GRD files e. By gridding data, typically using minimum curvature, gradients and contours can be examined. The most common program used to accomplish this is Geosoft, the grids of which are typically binary grid files GRD. In the following exercise, you will import a.

Note: if you are working with a software system other than Geosoft, you can also import GXF files. The filter imports the grid file. The new voxet appears in the Object list of the Object Tree under the Voxet category.

In the Object Tree, in the Object list, expand the Voxet category. The voxet appears in the 3D Camera. The display in the 3D Camera changes to show the voxet roughly in the center of the view. Click Show Top View. The display in the 3D Camera changes to show the view of the voxet from the top. If the camera looks similar to the figure above, you have successfully imported your magnetics. When airborne data is processed, all the accompanying datasets are generally gridded with the same extents and cell sizes.

The binary grid import tool allows the user to add multiple grids to the Introduction to Gocad for Mining Uncheck Create new. This indicates that the grid will be inserted into an existing voxet. Name the property of the grid elevation. Import UBC-GIF geophysical inversions files Inversion of geophysical data to create a 3D physical property distribution that explains the measured response has become a standard operating procedure in hard rock mining and exploration. The Mira Links tools allow to link todays most advanced geophysical forward modelling and inversion engines with Gocad, the worlds most advanced 3D geological modelling environment.

Thus breaking down the traditional barrier between geological and geophysical data by communicating arbitrarily complex 3D geological structural and physical property models to 3D geophysical modelling routines. Much more than advanced visualization, this enforces quantitative consistency between geological and geophysical data - the foundation of the Common Earth Model. The mesh file is used to create an Sgrid, while the model file importer fills the sgrid with the inversion result.

Check the Import Property from model checkbox. Make sure the No data value is set to Select the Sgrid option. The filter imports the mesh file.

View the sgrid in the 3D Camera 1. In the Object Tree, in the Object list, expand the Sgrid category. The sgrid appears in the 3D Camera. The display in the 3D Camera changes to show the sgrid roughly in the center of the view. Displaying the magnetic grid data on a sgrid section is done the same way as for displaying a property on a voxet section. This will be covered in a later section of this training.

Other supported file formats The above exercises have examined some of the more common file formats that are encountered. Once you have some object files, you can load these objects into other projects. In the following exercise, you will load a surface from an object file. Note: You will learn how to save an object in the next exercise. Load a Surface object from a data file 1. On the File menu, click Load Objects to open the dialog box or on the Main toolbar, click. Holding down the CTRL button, select all the.

Gocad loads the object files into the project and automatically displays the objects in the 3D Camera. The new surfaces also appear in the Object Tree, in the Object list, under the Surface category. The display in the 3D Camera changes to show the surfaces roughly in the center of the view. They should look similar to the figure. If so, you have successfully.

Load a Curve object from a data file 1. Gocad loads the object file into the project and automatically displays the object in the 3D Camera. The new curve will also appear in the Object Tree, in the Object list, under the Curve category. The display in the 3D Camera changes to show the curve roughly in the center of the view. On the File menu, click Save Objects to open the dialog box. Note: The Save Objects command automatically fills in the Objects box with the names of the objects displayed in the Camera.

The dialog box displays details about the file format, file name, and path used to save the object. You do not need to change the selection. These files were created when you started Gocad. About saving objects and projects We recommend saving your work as both objects as well as projects frequently in the unlikely event that the project becomes corrupt. A good tip is to create a new project everyday so you will have daily backups of your work - One can never have too many backups.

The project saves all of your objects in binary files under a. You can import objects from saved projects into a new project.

Data organization is essential and becomes more important as your project and number of objects increases. You will also learn how to modify the graphic and property attributes of objects.

With these toolbars you can manipulate the view in the 3D Camera. Notes Prepare the Workspace and the 3D Camera 1. Display all the markers for each drillhole. In the Object Tree, expand the Surface category if necessary and display the Topography surface. Tip: The Global View is helpful when your objects are far away from each other or significantly different in size. Manipulate the view by using the Camera View and Snapshot and Options toolbars 1. Reset the zoom and orientation in the 3D Camera to include all the objects you have selected to show by clicking Global View.

If you show an object that is outside the viewing area, this command resizes the view to include the object you added to the 3D Camera and any other objects that were already showing. Click Change View next to on the toolbar to open a menu with several views, and then click View from Top to reset the view to top or map view, which is oriented as if you are viewing an x-y plane from the positive z-axis. Click Change View again, and then click View from South.

The button changes to and the view changes to point toward the north direction, which is oriented as if you are viewing an x-z plane from the positive y-axis. The menu also contains commands for saving and deleting custom views or switching to the Home View You will learn more about the Home View later in this exercise. Display a compass rose showing the north, south, east, and west directions in the 3D Camera by clicking Orientation Symbol. When you rotate the view in the 3D Camera, the symbol also rotates to show the current orientation of the view.

Hide the orientation symbol by clicking again 5. Display a set of planes surrounding all the objects displayed in the 3D Camera by clicking Orientation Planes. The planes are the x-y, y-z, and x-z planes, and those intersecting the x-axis are shown in red, those intersecting the y-axis are in green, and those intersecting the z-axis are in blue.

Displaying these planes helps you determine the position of objects in your model relative to the x-, y- and z-directions. Hide the planes by clicking again. Click Pick Center Point the pointer changes to a , click a point on an object do not click a blank spot in the 3D Camera such as a point on Topography. The view in the 3D Camera recenters on the point you select. The 3D Camera uses the centre point when you zoom or rotate the view; and the point you select remains the center point even if you hide the object.

Change the background color in the 3D Camera. Click Background Color to open a color palette, and then click the color white. Switch the viewing perspective between parallel and Tip: When you save images for printed material, you can conserve ink and toner by setting the background colour to white.

Tip: Use Parallel View when you want to compare the dimensions of objects that are far away from each other. The button changes to and the view changes to Parallel View, which displays objects isometrically without distortions of angle, length, width, or volume, and parallel lines appear parallel even from a distance.

Switch back to the default Perspective View by clicking The button changes back to and the view changes to Perspective View, which simulates depth and relative distance by converging parallel lines at a distant point and showing similar objects as different sizes depending on the distance between them. Click Stereo to switch the view between non-stereo view the default view , and stereo view, which increases the realism of 3D scenes.

In stereo view, the 3D Camera displays two versions of the objects, one for the left eye and one for the right. To see the effect properly, you need a pair of 3D glasses or special viewing hardware so that each eye sees only one view. When viewed correctly, objects appear to have depth, especially with respect to each other. Turn off stereo view by clicking again. The 3D Camera uses this value to scale the display of objects in the z-direction.

Because most objects in geology are large in the x- and ydimensions in thousands of meters and small in the z-dimension a few hundred meters , most of your models will, therefore, look 62 Introduction to Gocad for Mining.

With z-scaling you can "stretch" the view apply a vertical exaggeration without actually modifying the objects themselves. Tip: Home View is very useful when taking snapshots to create images for a presentation. Being able to return to your predetermined settings each time you want to add images to those you already have without having to start from scratch becomes fast and easy.

Note: Each time you enter a new scaling factor, it becomes available in the list of common scaling factors for easy selection later in the current session. The scaling in the 3D Camera changes back to the default ratio for the x-, y-, and z-dimensions, The saved settings include the viewing angle, the setting for parallel or perspective view, and the z-scale factor. Now, you can rotate the view or zoom in or out and then easily switch back to the Home View. Set up the 3D Camera and take a snapshot 1.

There are other cameras; however, this course focuses on use of the 3D Camera. Specify a path and file name for the snapshot as follows: a Next to the Snapshot file box, click to open the dialog box. Click Save. You can choose from several image formats to save your image file as. Select the Resize snapshot check box.

This setting prevents the command from including in the snapshot any open windows that overlap the view in the 3D Camera. For example, you do not want to include the Snapshot dialog box if it overlaps the 3D Camera. When you make snapshot files from Gocad, you can view the images in an image processing program or import them into a presentation program, such as Microsoft PowerPoint. Here is a list of very useful keyboard shortcuts for the 3D Camera. Switches the view in the 3D Camera to the view saved as the Home View.

Switches the view in the 3D Camera to the View from Top. Switches the view in the 3D Camera to the View from South. You must point to the camera whose contents you want to save. Note This shortcut also works for other views, such as 2D and 3D crossplots in the Multivariate Statistics 2D and 3D windows , graphs in the histogram Property Statistics window , and editable colormaps. However, graphs in the Property Statistics window must be copied separately. Copies the view in the 3D Camera to the Clipboard.

You must first point to the camera containing the contents you want to copy. Note These shortcuts also work for other views, such as 2D and 3D crossplots in the Multivariate Statistics 2D and 3D windows , graphs in the histogram Property Statistics window , and editable colormaps. Repeats the last command. Turns on or off the display of the orientation symbol.

Turns on or off animation spinning in the 3D Camera. Turns on or off full-screen display of the 3D Camera. Moves the selected voxet section see the Voxet Section toolbar forward or backward within the voxet.

Individual items in the style are called attributes, such as the color of a surface or whether to show or hide the nodes for an object. In this exercise, you will learn about or do the following: Different methods for modifying attributes Graphic attributes of curves Graphic attributes of pointsSets Graphic attributes of surfaces Graphic attributes of drillholes.

You will see how you can modify graphic attributes to make the geologic information more clearly visible. You will be using the objects you imported in Section 2. About modifying attributes In Gocad, there is more than one way to modify attributes. One method involves switching to the Attributes mode in the Workspace and using the Attributes Manager.

From the Attributes Manager, you can access all the attributes for one or more objects, not just the graphic attributes. Another convenient way to access only the graphic attributes for objects is by using the Attribute toolbar.

On the Attribute toolbar, you can access the most common graphic attributes for objects. The following exercises will only cover use of the Attribute Introduction to Gocad for Mining You will learn more about the Attribute Manager in "Display drillhole properties".

About the Attribute toolbar The Attribute toolbar appears near the bottom-left corner of the Gocad window. Attribute toolbar default with no object selected When you first start Gocad and before you select an object in your project, the Attribute toolbar displays Nothing Selected. When you select an object in the Object Tree, the commands on the Attribute toolbar change with the type of object selected. For example, if you select a PointsSet object, the toolbar shows only the attributes that apply to pointsSets and, specifically, those that apply to the selected pointsSet.

With the Attribute toolbar, you can turn on and off the display of attributes in the 3D Camera, such as the bounding box, name, parts, and nodes for an object. You can also change the color that displays in the 3D Camera for many object attributes. The color strip across the bottom of many attribute buttons for example, the Name attribute indicates the active color setting for that attribute. Modify the graphic attributes of curves Use the Geology sections and follow the text as closely as possible.

Prepare the 3D Camera 1. Hide all the objects displayed in the 3D Camera. This action is called selecting an object. Change the color displayed in the 3D Camera for the Section1 curves. If not, select it now. The nodes and curve lines for the selected object change color in the 3D Camera.

Repeat step 1 making the nodes visible, changing the color of the nodes and the color of the curve lines for the rest of the displayed objects.

With the view in the 3D Camera set to View from South and slightly tipped to the southwest, the curves should look similar to those in the figure. If so, you have successfully changed some of the attributes of the displayed curves. Hide the objects displayed in the 3D Camera. Access attributes from the Object Tree 1. Understand and don't want to see this message again? Click the X to close this notice. Mature Fields. Carbon Capture and Storage. Geothermal Energy. More Assets. Seismic Processing and Imaging.

Geological Modeling. Formation Evaluation. Reservoir Engineering. Production Management. Data Management and Interoperability. View More. EarthStudy Seismic Attributes. SpeedWise Reservoir Opportunity.