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Emission Measurement Center Spectral Database

ShowSPC - a Viewer for Spectra Files

ShowSPC V1.2 is available for downloading. It will enable you to view Spectra files in the SpectraCalc/LabCalc format on a PC under MS Windows. You may also link your web browser (netscape or mosaic) to ShowSPC to view the EPA Spectra files while browsing the Database on line. Click here to download the executable.

The newer version of ShowSPC (V1.2) has print capability. The printer settings may have to be changed to utilize the printing capability of the viewer for certain printer/print driver combinations (some HP LaserJets for example). It has been found that the "graphics print property" must be changed from a vector to raster print option. If necessary, this can be done by performing the following steps in Windows 95:

  1. Click on My Computer


  2. Right click the icon of the printer to be used.


  3. Click on Properties


  4. Select the Graphics tab.


  5. Select the Use raster graphics button (versus the Use vector graphics)

 

To link Netscape Navigator 3.0 to the viewer:
  1. Go to the menu item "OPTIONS".


  2. Then on the pull down list, go to "General Preferences.".


  3. Click on the "Helpers" tab.


  4. Click on the "NEW TYPE" button.


  5. Enter "application" in the "Mime Type" box and "grams" in the Mime Sub Type" box.


  6. Click on "ok".


  7. Add "spc,SPC" in the extensions box for "application/grams.".


  8. Click on "Launch Application" and use "Browse" to point to the ShowSPC executable.

To link Netscape Navigator 4.0 to the viewer:
  1. Attempt to view or download a Spectra file by clicking here, which is linked to the EPAs Reference Spectra for Formaldehyde. You should then be presented with an "Unknown File Type" dialogue window.


  2. Click on "Pick App...".


  3. Type the path to the viewer application or use the "browse" feature to enter the path to "showspc.exe" previously downloaded on your local drive.


  4. Click on "OK". The Spectra file should now download and the viewer should launch and open the Spectra file automatically.

Netscape 4.0 should now be linked to the viewer and no other settings should be required to launch the viewer when Spectra files having the extension ".spc" are downloaded.

To link Microsoft Internet Explorer 3.0 to the viewer:
  1. Go to the menu item "View/Options"


  2. Then on the tab list, go to "Programs.".


  3. Click on the "File Types" button.


  4. Click on the "New Type" button.


  5. Enter any text string such as "Infrared Spectra" in the Description box.


  6. Enter "spc" in the "Associated Extension" box.


  7. Enter "application/grams" in the "Content Type (Mime)" box.


  8. Click on the "New" button.


  9. Use "Browse" to point to the ShowSPC executable.


  10. Click on the "OK" button.

To link Microsoft Internet Explorer 4.0 to the viewer:
  1. Attempt to view or download a Spectra file by clicking here, which is linked to the EPAs Reference Spectra for Formaldehyde. You should then be presented with an "File Download" dialogue window.


  2. Select "Open this file from its current location", then click on "OK".


  3. The file should download, then you will be presented with the "Open With" dialogue window. Select "Other", then enter the path to "showspc.exe" previously downloaded on your local drive.


  4. Select "Open".


  5. Make sure "showspc" is highlighted and "Always use this program to open this file" is checked, then click on "OK".


  6. The next time you attempt to download and view a Spectra file via the browser you will again be presented with the "File Download" dialogue window. If you would like to always download and view the file without being asked, uncheck "Always ask before opening this type of file", select "Open this file from its current location", and click "OK". Now subsequent Spectra files will download and open in the viewer automatically.

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