| Image
format |
Export |
DPI |
Quality |
Arcsize |
Irfanview size if
quality = 100% |
Quality
reduction needed to get Irfanview equal file size |
|
|
|
|
Program |
|
% |
kb |
|
| JPEG |
ArcView |
300 |
100 |
1257 |
1062 |
n/a |
|
Too big, no improvement |
|
| JPEG |
ArcView |
300 |
80 |
443 |
954 |
86% |
|
Good quality |
|
| JPEG |
ArcView |
300 |
60 |
338 |
|
77% |
|
Lines begin to blur |
|
|
|
|
|
|
| EPS New |
ArcView |
300 |
n/a |
749 |
n/a |
|
Better for vectors than the JEPG format, lot worse for raster
at 300dpi than the JPEG is |
|
| |
|
Conclusion: Best for keeping vectors editable (like symbols
from Arcview into Illustrator) |
|
| EPS New |
ArcView |
600 |
n/a |
2143 |
|
Slow, big, about same quality for raster as a 300dpi jpeg, no
improvement on Vector of course |
|
|
|
Only if desperate to use one format for raster/vector
combination file but still not great |
|
|
|
Cannot preserve text of e.g., the legend in editable format |
|
| CGM Bin |
ArcView |
300 |
n/a |
310 |
|
Vectors good but raster crap, and cannot ungroup anything
inIlustrator |
|
| CGM Bin |
ArcView |
600 |
|
691 |
|
Slow, not big; vectors good raster same as 300 jpeg but still
not ungroupable |
|
| |
|
Cannot preserve text in editable format |
|
|
|
CGM Bin is similar to EPS but worse because of no ungrouping |
|
| CGM Character |
ArcView |
300 |
|
333 |
|
fast but no use for neither text nor anything else, you get
nonsense |
|
| CGM Clear Text |
ArcView |
300 |
|
fast but no use for neither text nor anything else, you get
nonsense |
|
| EPS Old |
ArcView |
|
|
Cannot yet find difference with EPS new, except New has more
dpi options |
|
| WMF Placeable |
ArcView |
144 |
clip no |
230 |
|
Very
similar to CGM and EPS, editable like EPS, and good for vectors but bad for
raster, but |
|
| |
300 |
clip yes |
721 |
|
ungrouping gives worse results than EPS, so EPS still better
(WMF ungroups all vectors, but |
|
|
EPS first ungroups them into similar groups, which could be
handy, i.e., vectors with different ID's |
|
|
and hence different legend symbols, stay grouped, which makes
editing them easier |
|
| Conclusions: |
|
| 1)
Use JPEG at 300 dpi and 80 quality if using raster/vector combi in your layout and if everything in your
layout is already perfect, no editing needed; see attached script for this
exact purpose |
|
|
| 2)
Use EPS to export vector files and legends which require manual editing (text
+ vector symbols) in Illustrator, and then manually add any raster files,
then export as JPEG from Illustrator |
|
| Use
attached script at 300 dpi, since higher resolution is a waste since they are
vectors files anyway |
|
|
| 3)
If you have a licence, use Mapublisher to import most shapefiles into
Illustrator, use EPS only when exporting geological symbols, and combine them
in Illustrator |
|
|
| 4)
Alternatively, if you prefer Illustrator's geological USGS swatches (fills)
above ArcView fills, but do not have Mapublisher, use the
Select>Same>Fill color etc. options in Illustrator to quickly change |
|
| the
fill or stroke of all polygons for example that have the same ID and thus
same fill in ArcView. Then you have the same functionality as with
Mapublisher, except for the reprojection options of raster files |
|
| More
info on export formats in ArcView |
http://support.esri.com/index.cfm?fa=knowledgebase.techarticles.articleShow&d=18810 |
|
|
or: |
http://members.westnet.com.au/bhulscher/exportlayoutscript.mht |
|
| Download
scripts |
|
TSRC FTP |
|
|
|
|
|
|
|
|
|
|
|
|
|