Adding pierce points to long section.
VG
I want something more like this...
Thanks!
ktgcad
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Geological Mapping (Historical Map) Data Integration, Analysis, Capturing and Data Conversion
for Geochemistry,IP and Drill logs
Skypes-ktgcad
Steve King
I think you’ll have to export the midpoint cords and data to a separate file and plot as 3D points.
Cheers
Steve
VG
Steve King
The coordinates are only a problem if you are creating a section oblique to your grid. If the section is parallel the discover section uses real coordinates but in a non-earth projection – so you can plot your points if you use a non-earth projection. If the section is oblique the Discover section used arbitrary cords. However, if you have displayed your section in Discover 3D as a raster you should be able to bring your 3D points in there in the right place.
Cheers
Steve
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com] On Behalf Of VG
Sent: Friday, 4 April 2014 11:23 AM
To: mapi...@googlegroups.com
Subject: Re: [MI-L] Adding pierce points to long section.
Yes, KTG. A midpoint of the composite. I cannot show it in the downhole attributes or plot it anywhere in the section generated by the drillhole function of Discover.
Steve, I tried generating 3D coordinates, loading them to the sections generated from Discover > Drillholes. It doesn't plot in the section. The section is a drawing described in length (not XY), but the points have coordinates, so I guess that's the problem with this.
Thanks for the help!
On Friday, April 4, 2014 8:09:56 AM UTC+8, Steve King Brisbane wrote:
I think you’ll have to export the midpoint cords and data to a separate file and plot as 3D points.
Cheers
Steve
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com] On Behalf Of ktgcad
Sent: Thursday, 3 April 2014 10:03 PM
To: mapi...@googlegroups.com
Subject: Re: [MI-L] Adding pierce points to long section.
Does your question mean, say the length of the line is 100meters and you wanted a point @ 50meters.is that what you wanted?
On Tue, Apr 1, 2014 at 12:26 PM, VG <victor...@gmail.com> wrote:
VG
Barbara Carroll
You all are making this way too hard – You have created a LONG section which by definition contains all the information – you need to instead create an Envelope section and specify the envelope width – this will achieve what you are wanting.
Best Regards,
Barbara Carroll, CPG
________________________________________________________
GeoGRAFX GIS Services
Management, Analysis and Presentation of Geologic Data
1790 E River Rd, Suite 213 • Tucson, AZ 85718
phone: 520 744-4457 fax: 520 744-3066
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com] On Behalf Of VG
Sent: Thursday, April 03, 2014 7:12 PM
To: mapi...@googlegroups.com
Subject: Re: [MI-L] Adding pierce points to long section.
Indeed my section is oblique. Sorry but I don't have much experience with Discover 3D. Will I be able to plot it like those generated sections?
I saw one presentation that is able to put these midpoints into downhole attributes. This seems easier. Has anybody done this?
Thank you very much.
--
VG
Barbara Carroll
Try making the search envelope small – to something like 1, or 10 – see what happens then…
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com] On Behalf Of VG
Sent: Friday, April 04, 2014 3:44 PM
To: mapi...@googlegroups.com
Subject: Re: [MI-L] Adding pierce points to long section.
This still doesn't produce pierce points but full intervals of composites. I am working on a section along a strike of an orebody thus pierce points is really needed.
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Cinda Graubard
Sent from my iPhone
This won't simply work, Barbara. Thanks anyway.
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--Noel Victor I. Germino
Barbara Carroll
Maybe I’m not understanding what you want – you want pierce points of drill holes going thru a section plane?
Here is what I get:
Is that what you are wanting?? If not I’ll stop trying..
Best Regards,
Barbara Carroll, CPG
________________________________________________________
GeoGRAFX GIS Services
Management, Analysis and Presentation of Geologic Data
1790 E River Rd, Suite 213 • Tucson, AZ 85718
phone: 520 744-4457 fax: 520 744-3066
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com] On Behalf Of Vic Germino
Sent: Saturday, April 05, 2014 5:00 PM
To: mapi...@googlegroups.com
Subject: Re: [MI-L] Adding pierce points to long section.
This won't simply work, Barbara. Thanks anyway.
On Sat, Apr 5, 2014 at 8:54 PM, Barbara Carroll <geog...@sprynet.com> wrote:
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Noel Victor I. Germino
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VG
Steve King
Hi Vic
You can still do this in Discover but it just takes a bit of messing around. As I understand it Vic wants to do what I do a fair bit which is to plot 3D points at the mid points of where the hole intersects the ore body. You can’t do this directly in discover. If you create points you can then thematically map them by grade, thickness, grade x thickness and even characterise different dips and strike of the ore zone in pseudo-conolly diagrams or create pie diagrams. Perhaps this functionality is something Discover should look at adding. As I mentioned before the problem is that the oblique section uses arbitrary coordinates starting at zero for the length along the section however the RL coord will be correct. In order to plot the points you will need to translate the “X” coord in the plane of your oblique section from the true X,Y coordinates in your grid space. I think you should be able to do this by setting up a translation by getting equivalent new “X”cords from the position of the section grid Eastings so that you can work out the ratio between them. Then apply that ratio to the X coordinates of your intercept points so they will plot correctly in your oblique section. I think this would do it – but as I said a bit of messing about. Perhaps someone else can think of a better way. It just occurred to me that another way might be to plot the intercept data as structural points. That way the points would be plotted in the correct place on the section. You could then use these points to update the coordinates of your true intercept points using the “update coordinates” module in Discover and then then use the new coordinates to create the intercept points on the section.
Cheers
Steve
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com] On Behalf Of VG
Sent: Sunday, 6 April 2014 12:08 PM
To: mapi...@googlegroups.com
Subject: Re: [MI-L] Adding pierce points to long section.
Thank you all for helping.
--
AlexZ
Interestingly, we have some functionality being developed in precisely this space for the upcoming Discovver 2014 release. I'll mention it in another post a little later, to save confusion.
I've just seen your images in the first post VG, and I assume therefore that you are solely trying to label these midpoints of your composites? As well as display them as point style graphics?
The labelling side can already be accomplished with your existing composites, as per http://encomkb.encom.com.au/questions.php?questionid=749 . See the coloured trace shade/labelled image in this post.
However showing the actual mid-points as 'point objects' is likely rather convoluted, as Steve suggests; the Drillhole module currently handles everything as From/To line intervals (including point samples), and requires the drillhole skeletons underneath to spatially locate these. Steve's suggestion is probably the best option, vis using Structural Symbols.
1/. First I created a copy of the composite downhole table, renamed the existing From and To fields FromO and ToO (old), and added new From adn To fields (numeric). Then using Table Update, I filled the new From/To fields with the mid-point depths, using:
FromO + Interval/2 (your composite table should have an Interval field).
I also added a Symbol field (integer) and populated it with values of 45.
2/. Add this new table to the project, Recache, and Regenerate the section.
3/. In Display Downhole Data, add a Structure display, and populate as per attahced image, to get the other images results in the section (which I've labelled as per link higher in my post)..
Obviously this requires the drillholes to be visible (or at least the 'A' layer, which inlcudes top/bottom labels, etc.
I hope this helps in the interim.
Alex Zdziarski
Product Manager
PBS
AlexZ
As a separate post, coming in Discover 2014 (July release) are two specific bits of functionality that play in the same space, but can be used entirely in isolation of each other.
1/. NEW The ability to clip a drillhole downhole data table (e.g. assays) to the bounds a selected vector (i,e, DXF) volume, such as a modelled orezone or alteration halo. The output table is then a new downhole table for the project.
2a/. These clipped intervals could then be displayed in your sections as per normal, perhaps superimposed over the vector volume intersection
2b/. OR these clipped intervals could then be composited into single intersection per hole
3/. NEW In the Section Manager will be a new Pierce Point tool, that will create a POINT layer for a selected downhole table, such as the output of option 2b above. These points could be the composite's mid-points (as required by the Threads author VG), the top of each composite (where it first pierces/enters the orebody volume) by either RL or by downhole depth, the equivalent exit points, or a number of other options. These point objects will obviously not only be labelable (vis http://encomkb.encom.com.au/questions.php?questionid=749), but will be give you the power to visually control their symbology, as can be seen in the attached images (I've applied some basic thematic mapping in one image, and also turned of the other section layers in the other). You could even preform grid interpolation on this point data using Kriging or IDW from the Surfaces module, to create a grid from this point data, to then contour for display in the long section..
Option 3 will also be valuable for existing point data in your drillholes (From = To) such as aquifer intercepts, point mag sus. readings, etc, allowing conversion into true point data for a myriad of better display and manipulation options.
I hope that is of interest.
regards
Alex Zdziarski
Product manager
PBS