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| geoscene3d:qc_and_statistics:3dgridhistogram [2021/07/26 09:11] – [Step 4. Results] sbr_i-gis.dk | geoscene3d:qc_and_statistics:3dgridhistogram [2021/07/29 14:52] (current) – external edit 127.0.0.1 |
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| ==== Step 1. Floating value 3D Grid histogram ==== | ==== Option 1. Floating value 3D Grid histogram ==== |
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| * The biggest trends of a dataset can be visualized and analyzed in the histogram before and after a model is made by showing the amount of present voxels for different values in the dataset e.g. for resistivities. | * The trends of a dataset can be visualized and analyzed using the histogram, which shows the amount of voxels for different values in the dataset e.g. for resistivities. |
| * Also, 1D models can be interpolated into 3D grids with the aim to check if data are corresponding e.g. to resistivities. | * Also, 1D models can be interpolated into 3D grids with the aim to check if data are corresponding e.g. to resistivities. |
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| {{:geoscene3d:qc_and_statistics:voxelmodel.png?nolink&}} | {{:geoscene3d:qc_and_statistics:voxelmodel.png?nolink&}} |
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| 1. "QC and Statistics" menu <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> next –> "Calculation Mode" <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> Floating value 3D Grid (e.g. Resistivities) <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> "Input Data" <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> your 3D grid <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> next. | 1. "QC and Statistics" menu <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> next –> "Calculation Mode" <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> Floating value 3D Grid (e.g. Resistivities) <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> "Input Data" <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> your 3D grid <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> next. |
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| {{:geoscene3d:qc_and_statistics:grid_inputdata.png?nolink&}} | {{:geoscene3d:qc_and_statistics:grid_inputdata.png?nolink&}} |
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| 2. You can choose the surfaces for where the calculation is needed by clicking the upper and lower constraint <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> next. | 2. You can choose the surfaces for where the calculation is needed by clicking the upper and lower constraint <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> next. |
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| * It can also be avoided to pick constraints if a histogram of the entire dataset is wanted. | * It can also be avoided to pick constraints if a histogram of the entire dataset is wanted. |
| {{:geoscene3d:qc_and_statistics:histogram_binsize20.png}} | {{:geoscene3d:qc_and_statistics:histogram_binsize20.png}} |
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| ==== Step 2. Discrete value 3D Grid histogram ==== | ==== Option 2. Discrete value 3D Grid histogram ==== |
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| * Discrete values e.g. chemistry values or lithologies. | * Discrete values e.g. chemistry values or lithologies. |
| 1. Repeat step 1.1. but choose "Discrete value 3D Grid (e.g. Lithologies)". | 1. Repeat step 1.1. but choose "Discrete value 3D Grid (e.g. Lithologies)". |
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| 2. Pick the discrete value for the histogram in "Discrete Value 3D Grid". Here lithology is chosen. | 2. Select a discrete 3D grid for the histogram in "Discrete Value 3D Grid". Here lithology is chosen. |
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| 3. Repeat step 1.2. for constraints. | 3. Repeat step 1.2. for constraints. |
| {{:geoscene3d:qc_and_statistics:lithology_histogram.png}} | {{:geoscene3d:qc_and_statistics:lithology_histogram.png}} |
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| 4. To show the lithology legend go to Object Manager <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> right click Lithology <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> Show Legend. | 4. To show the lithology legend go to Object Manager <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> right click Lithology <font 11pt color font-weight: inherit; background-color; color: inherit; background-color: inherit background-color: inherit /Arial,Helvetica,sans-serif;;inherit;;inherit background-color: inherit background-color: inherit >→</font> Show Legend. |
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| {{:geoscene3d:qc_and_statistics:lithology.png}} | {{:geoscene3d:qc_and_statistics:lithology.png}} |
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| ==== Step 3. Combination of floating and discrete values ==== | ==== Option 3. Combination of floating and discrete values ==== |
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| * This tool is used to check e.g. if your resistivity data matches the concerned lithology. | * This tool is used to check e.g. if your resistivity data matches lithology. |
| * The resistivities are held together with the lithology grid at the same voxel position. | * The resistivities are held together with the lithology grid at the same voxel position. |
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| {{:geoscene3d:qc_and_statistics:addcombined_lithology1.png?nolink&}} | {{:geoscene3d:qc_and_statistics:addcombined_lithology1.png?nolink&}} |
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| * A histogram model with only one chosen lithology held together with resistivites. | * A histogram with only one chosen lithology held together with resistivites. It shows the resisistivities where the lithology is ML (till) |
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| {{:geoscene3d:qc_and_statistics:histogram_layer1_binsize10_2.png?nolink&}} | {{:geoscene3d:qc_and_statistics:histogram_layer1_binsize10_2.png?nolink&}} |
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| ==== Step 4. Results ==== | |
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| * To improve the details of the resistivity for the chosen lithology, the bin size can be reduced e.g. from 10 to 2. | |
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| {{:geoscene3d:qc_and_statistics:histogram_layer1_binsize2.png}} | |
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