MICROMINE TUTORIAL FREE DOWNLOAD

To rectify this the raster image must be converted to an appropriate working coordinate system such as UTM. With the composite table flagged by distances, classified into bins and sorted by those bins we can then do a drill hole extract where we extract the data within each bin and average it. Boundary analysis is very deposit and model dependant. Import into the target application 8. Converting these paper maps into a digital, and preferably 3-D, format can be daunting but is vital for making this legacy information accessible to modern-day operations. Contour maps cover a wide range of data types like surface topography which may incorporate surface mining activities like pit and dump contours , geophysics, and geochemistry.

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A scanned underground mine plan. Getting rid of obvious scuffs, dirt or fingerprints now is better than cleaning up the scanned version afterwards. Compatibility is an important feature of any software package and good compatibility ensures that the user can incorporate all of the data they need into the task at hand. In this way the sample locations can be enhanced by colour coding, scaling and labelling, and can even be converted from geographic to UTM coordinates on the fly.

Producing the linework is almost instant. Join, tag, and attribute the linework, and optionally assign elevations if working in 3-D.

The resolution of the imagery depends on its provenance and so the resolution of the images is variable across the globe. Because of their topological simplicity for example, contour lines never branch, cross over, or change valuethese maps are usually the easiest to process.

Micromine tutorial-How to create new data file - Free GIS Tutorial

Join, tag, and attribute the linework, and optionally assign elevations if working in 3-D The workflow — paper ttuorial scanned image Converting a paper map into a scanned image involves these steps: This gives you a good way of displaying the data and visually validating the calculation, is it doing what you expect it to Figure 10?

Avoid DXF because the files can become nicromine large. You should erase anything that touches the original linework whilst leaving the linework intact to make it easier for the vectoriser to see, as shown on Figure 3.

Maps that only contain polygons with no other lines are a good example of this kind of map. Enhance and clean up the scanned image 6.

Here is a list of well-known commercial software and their supported feature types: These formats can be directly displayed or imported into Micromine but before doing either an important consideration is the coordinate system.

When your drilling is normal or near normal to the contact this is perfectly reasonable and gives good results Figure 3 and Figure 4. Vectorising creates the entire map in a few seconds, instead of hours or days to digitise it from scratch Ease: Geophysical contractors may supply data in raster format and much of the open source geophysical and elevation data available from government bodies is also in raster format.

Basic contact profile that plots distance against grade, whilst noisier than a traditional contact profile it does show the sort of scatter you would expect to see in reality and an average line through the data either side of 0m distance indicates that a significant change occurs.

Although the minerals industry embraced digital technology back in the s there are still many historic mines with huge and unused archives of paper data. Clean up the linework 9. If you have sorted the composite table by bin prior to running the drill hole extraction you will have a new table where all the information is divided into the relevant distance bins only, with a sample count and averaged grades.

Pdf tutorial micromine

Yellow squares identify control points. A more robust way is to rectify the image using each method and display it together with other data of known quality, or at the very least with coordinate gridlines overlaid. Rectifying this is quite simple, in the grid to DTM conversion dialog there is an option to Sample every nth block tutoria, simplifies the Gutorial by skipping some of the cells.

It can be hard to choose the best transformation method for a heavily distorted image.

A Complete Micromine Tutorial and Guide for Beginners

Before displaying it enhance the grid by creating a colour set for the elevations Figure 7. What is Google Earth? Once imported the geological mapping has been displayed as a Tutoiral with the polygons filled and a hatch set applied to the geological codes. Raster images are often provided in geographical coordinates and ttorial displayed in Micromine this can lead to vertical exaggeration of tutoriial cell values. Take your time with this step and explore a few different enhancements before continuing.

Note that the data available varies depending on the geographical location you choose. Here is a list of well-known commercial software and their supported feature types:. With this option set geological codes, descriptions or other data attributed to the polygons will be imported in addition to the polygons.

In contrast, modern geological maps with light or single-colour solid fills are easier to deal with.