Jump to content
TUFLOW Forum

cfrk

Inactive members
  • Content Count

    64
  • Joined

  • Last visited

Everything posted by cfrk

  1. I'm trying to display velocities across a Site, and have noticed that the output of max velocity is of velocity at maximum depth. In my model at maximum depth ponding occurs on the Site but then as depth decreases velocities increase again, in which case velocity at max depth is no use. Is there any way to output maximum velocity as opposed to velocity at maximum depth?
  2. Great thanks David much appreciated
  3. Has anyone developed a quick system for selecting files associated with a model i.e. to burn to a CD if I'm sending the model to a 3rd party? I have 6 separate runs I need to send, all with different control files and .tab layer versions etc. At present I am having to go through all the control files and then manually select the Mapinfo layers referred to - quite time consuming and occasionally results in missing files. I don't want to send my whole folder structure as it is very large with a lot of older intermediate versions etc that no one else is interested in. Would be great to have some type of utility that does this automatically, although not being a programmer I don't know if it's feasible? Cheers Richard
  4. cfrk

    Culvert Set-up

    Hi, with regards to the tidal flaps, I've previously used a unidirectional channel, by adding "U" after the channel type attribute (See p 4-48 of the manual). Flow will only travel in the positive direction of the channel. Cheers Richard
  5. cfrk

    Raster files in Mapinfo

    Thanks Nick, unfortunately that hasn't worked either. I've tried printing using an enhanced metafile to .pdf, which puts the image in the right place but chops 3/4 of it off, obviously has exceeded memory or something. The method I've had to adopt is to print using Microsoft XPS Document Writer to an .xps, then from there print to .pdf (for electronic records) and finally to the printer for the report. Better quality than Save Window As too, especially with vectors such as OS tiles which come out blocky when saving window as, but are smooth using this method. Cheers Richard
  6. cfrk

    Raster files in Mapinfo

    Thanks David, We've had to resort to printing A4 prints on an A1 plotter. Have tried various options including printing to file and then to the printer, but it appears our A4 colour printer doesn't have the memory required to print these maps. Cheers Richard
  7. cfrk

    Raster files in Mapinfo

    Further to my question, I'm not sure if it is an issue relating to my computer's memory? I can save window as a .jpeg or similar and then print from there, but it seems like a round-about way of doing things and doesn't have quite the same quality.
  8. Similar to Tony's problem from March 2008, I am having issues when printing raster images from MapInfo. Within MapInfo, I have imported a geo-referenced aerial photograph, as well as depth grids from Tuflow output. These appear to line up well with OS tiles as well as my Tuflow GIS files on the screen display. However when I try to print, the raster files (eg photo, depth grids) get shifted and are no longer where they should be??? I have checked that the projection is the same throughout, and can't find any solution. Has anyone had similar problems? Any advice other than some computer/pavement contact? Cheers Richard
  9. In an urban catchment I am trying to model a sluice structure in 1D that splits flow into several culverts. The structure has several components, with varying numbers of entrances and exits. For example, one of the chambers consists of: Inflow from open channel, where the primary exit from the sluice is a circular culvert. There is a second rectangular culvert running off at 90 degrees which is designed to take some flow (at roughly the same IL as the primary exit culvert). There is also a 3rd culvert, with a weir overflow entrance at a considerably higher IL, designed to run in higher flows. I am wondering the best way to model this in Estry. Should I be modelling the main entrance/exit to the chamber as one continuous 1d network, and then add short weir channels connected to culverts representing the secondary exits? The chambers have storage capacity above the obvert of the culverts leading in/out - can this be represented in a pit or should I use a short 1d culvert? I hope this makes some sense, and will appreciate any suggestions! Cheers Richard
  10. I have a DEM from LiDAR, but since the imagery was taken a new road and has been constructed, and a large site reprofiled, affecting levels. We have had a topo survey of the area done, and I am trying to interpolate a grid from the point elevations to use in place of LiDAR where necessary (and subsequently fto use to extract z-points - as well as for presentation of results). I have tried triangulation, however along road embankments I get little "domes" protruding into the embankment, where points along the bottom of the embankment are getting priority over higher points on the road. Obviously MapInfo doesn't know there is a string line that should connect all the low points along the bottom of the embankment, and a string line connecting all the kerb points etc. This is the most noticable result of interpolation, though I'm sure it's having effects in other places where elevation changes rapidly, and I don't want to start affecting hydraulics with this false small scale topography. Has anyone had experience in trying to do a similar thing, and any tricks or methods to tidy this up? I'm thinking I may just have to pick out important features such as top of road embankment and add them as z lines/areas...
  11. Hi Jules, This is a screen dump of the configuration setup I have which works fine. I have the wordfile.txt in the Ultraedit folder with the executable (which happens to be in My Documents) Hope this helps Richard
  12. Hi, I'm wondering how Estry applies loss coefficients between the values I specified in the bg table? Does it merge/average from one to another or does one coefficient apply through until the point where another is specified? Does the loss coefficient for higher elevations get applied to the whole body of water beneath or just down to the previous elevation/loss point? I am trying to compare change in Energy Grade at various flows from a Hec-Ras model with BG tables in Estry. Thanks Richard
  13. I have a 1d nwk with several arch and flat span bridges. I can find the area for standard bridges with XZ data in the 1d_ta_tables_check file. However the arch bridges (defined using CS and BG tables) don't seem to output a check for area. The corresponding channel section for the bridge just has elevation, depth and storage width, and the remaining columns (flow width, area etc) are full of 0's. Do I need to define area manually in the CS table as well as elevation and width? Or am I looking in the wrong place to check Estry's area calcuation? Thanks Richard
  14. Hello, I am having problems with my standalone dongle. When attempting to run Tuflow, it gets as far as searching for a dongle, which it says it can't find and then stops. If I just double click Tuflow.exe without any parameters, it goes through the same process with the same results, but then it searches for an "uncoded Dongle", which it finds. However the serial number of this uncoded dongle is different to the serial number that our dongle is supposed to have... Our IT department have tried reinstalling the dongle driver, to no avail. Any ideas appreciated.
×
×
  • Create New...