# Loading raster Images from a Network Drive

**URL:** <https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301>\
**Category:** WinForms\
**Created:** [March 24, 2009, 9:26am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301 "2009-03-24T09:26:34Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![klaus\_zimmerli](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/k/8e8cbc/32.png) [@klaus\_zimmerli](https://community.thinkgeo.com/u/klaus_zimmerli)\
**Post date:** [March 24, 2009, 9:26am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/1 "2009-03-24T09:26:34Z")

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Hi,&nbsp;the&nbsp;ESRI&nbsp;MapObjects&nbsp;LT2&nbsp;component&nbsp;is&nbsp;an&nbsp;old&nbsp;piece&nbsp;if&nbsp;software,&nbsp;but&nbsp;quite&nbsp;efficient&nbsp;regarding&nbsp;file&nbsp;handling.&nbsp;I&nbsp;pointed&nbsp;out&nbsp;that&nbsp;the&nbsp;component&nbsp;loads&nbsp;only&nbsp;the&nbsp;part&nbsp;of&nbsp;the&nbsp;map&nbsp;(geo&nbsp;tagged&nbsp;tif&nbsp;images)&nbsp;which&nbsp;is&nbsp;currently&nbsp;visible.&nbsp;This&nbsp;results&nbsp;in&nbsp;an&nbsp;optimized&nbsp;network&nbsp;traffic&nbsp;especially&nbsp;when&nbsp;the&nbsp;map&nbsp;files&nbsp;are&nbsp;located&nbsp;on&nbsp;a&nbsp;network&nbsp;drive.  
  
When&nbsp;I&nbsp;investigated&nbsp;the&nbsp;behavior&nbsp;of&nbsp;the&nbsp;ThinkGeo&nbsp;Desktop&nbsp;component&nbsp;I&nbsp;detected&nbsp;that&nbsp;the&nbsp;whole&nbsp;file&nbsp;is&nbsp;first&nbsp;transferred&nbsp;over&nbsp;the&nbsp;network&nbsp;and&nbsp;then&nbsp;displayed.&nbsp;  
  
My&nbsp;question:&nbsp;Are&nbsp;there&nbsp;properties&nbsp;for&nbsp;the&nbsp;map&nbsp;component&nbsp;to&nbsp;control&nbsp;the&nbsp;behaviour&nbsp;for&nbsp;loading&nbsp;image&nbsp;files?

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**Author:** ![David](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/d/aeb1de/32.png) [@David](https://community.thinkgeo.com/u/David)\
**Post date:** [March 24, 2009, 1:56pm UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/2 "2009-03-24T13:56:39Z")

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Klaus,&nbsp;  
&nbsp;&nbsp;  
&nbsp;May&nbsp;I&nbsp;ask&nbsp;a&nbsp;few&nbsp;questions.&nbsp;&nbsp;When&nbsp;did&nbsp;you&nbsp;test&nbsp;this,&nbsp;was&nbsp;it&nbsp;recently?&nbsp;&nbsp;What&nbsp;kind&nbsp;of&nbsp;layer&nbsp;specifically&nbsp;did&nbsp;you&nbsp;use,&nbsp;the&nbsp;class&nbsp;name?&nbsp;&nbsp;We&nbsp;now&nbsp;have&nbsp;a&nbsp;GeoTiffRasterLayer&nbsp;that&nbsp;uses&nbsp;a&nbsp;new&nbsp;method&nbsp;that&nbsp;in&nbsp;theory&nbsp;should&nbsp;not&nbsp;load&nbsp;the&nbsp;entire&nbsp;image.&nbsp;&nbsp;In&nbsp;the&nbsp;past&nbsp;we&nbsp;loaded&nbsp;the&nbsp;whole&nbsp;image&nbsp;and&nbsp;displayed&nbsp;it&nbsp;as&nbsp;a&nbsp;TIFF.&nbsp;&nbsp;Now&nbsp;we&nbsp;use&nbsp;some&nbsp;more&nbsp;advanced&nbsp;procedures&nbsp;to&nbsp;load&nbsp;strips&nbsp;or&nbsp;tiles&nbsp;on&nbsp;demand.&nbsp;&nbsp;If&nbsp;you&nbsp;have&nbsp;not&nbsp;used&nbsp;the&nbsp;GeoTiffRasterLayer&nbsp;specifically&nbsp;I&nbsp;suggest&nbsp;you&nbsp;try&nbsp;it&nbsp;out.&nbsp;&nbsp;If&nbsp;you&nbsp;used&nbsp;this&nbsp;to&nbsp;test&nbsp;then&nbsp;we&nbsp;can&nbsp;look&nbsp;further&nbsp;into&nbsp;it&nbsp;and&nbsp;see&nbsp;how&nbsp;we&nbsp;can&nbsp;help&nbsp;out.&nbsp;  
&nbsp;&nbsp;  
&nbsp;David

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**Author:** ![klaus\_zimmerli](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/k/8e8cbc/32.png) [@klaus\_zimmerli](https://community.thinkgeo.com/u/klaus_zimmerli)\
**Post date:** [March 25, 2009, 5:41am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/3 "2009-03-25T05:41:06Z")

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David,

Thanks&nbsp;for&nbsp;the&nbsp;tip.&nbsp;I&nbsp;was&nbsp;using&nbsp;release&nbsp;3.0.115&nbsp;Beta&nbsp;1.&nbsp;I've&nbsp;downloaded&nbsp;the&nbsp;latest&nbsp;version&nbsp;3.0.199&nbsp;Beta&nbsp;2&nbsp;and&nbsp;invoked&nbsp;the&nbsp;method&nbsp;GeoTiffRasterLayer&nbsp;instead&nbsp;of&nbsp;GdiPlusRasterLayer.&nbsp;Loading&nbsp;tif&nbsp;images&nbsp;takes&nbsp;now&nbsp;less&nbsp;time.&nbsp;

There&nbsp;is&nbsp;a&nbsp;small&nbsp;issue,&nbsp;between&nbsp;2&nbsp;differnt&nbsp;maps&nbsp;is&nbsp;a&nbsp;white&nbsp;line&nbsp;visible.&nbsp;If&nbsp;I&nbsp;use&nbsp;GdiPlusRasterLayer&nbsp;it&nbsp;is&nbsp;not&nbsp;visible.&nbsp;

Compared&nbsp;to&nbsp;the&nbsp;previous&nbsp;release&nbsp;loading&nbsp;several&nbsp;images&nbsp;at&nbsp;startup&nbsp;takes&nbsp;also&nbsp;less&nbsp;time&nbsp;using&nbsp;GdiPlusRasterLayer.&nbsp;

Thanks&nbsp;Klaus

&nbsp;

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**Author:** ![David](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/d/aeb1de/32.png) [@David](https://community.thinkgeo.com/u/David)\
**Post date:** [March 26, 2009, 5:50am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/4 "2009-03-26T05:50:12Z")

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Klaus,&nbsp;  
&nbsp;&nbsp;  
&nbsp;&nbsp;&nbsp;Can&nbsp;you&nbsp;attach&nbsp;a&nbsp;screen&nbsp;shot&nbsp;of&nbsp;the&nbsp;two&nbsp;image,&nbsp;the&nbsp;one&nbsp;with&nbsp;and&nbsp;without&nbsp;the&nbsp;white&nbsp;line?&nbsp;&nbsp;&nbsp;I’m&nbsp;glad&nbsp;the&nbsp;suggestion&nbsp;worked.&nbsp;&nbsp;The&nbsp;new&nbsp;GeoTiff&nbsp;class&nbsp;really&nbsp;works&nbsp;well.&nbsp;&nbsp;I&nbsp;am&nbsp;pretty&nbsp;sure&nbsp;we&nbsp;can&nbsp;fix&nbsp;the&nbsp;white&nbsp;line&nbsp;once&nbsp;we&nbsp;verify&nbsp;what&nbsp;it&nbsp;is&nbsp;from&nbsp;your&nbsp;screen&nbsp;shot.&nbsp;  
&nbsp;&nbsp;  
&nbsp;David

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**Author:** ![klaus\_zimmerli](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/k/8e8cbc/32.png) [@klaus\_zimmerli](https://community.thinkgeo.com/u/klaus_zimmerli)\
**Post date:** [March 27, 2009, 4:56am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/5 "2009-03-27T04:56:01Z")

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David&nbsp;  
&nbsp;I&nbsp;was&nbsp;not&nbsp;able&nbsp;to&nbsp;upload&nbsp;the&nbsp;document&nbsp;with&nbsp;the&nbsp;screen&nbsp;shots,&nbsp;as&nbsp;the&nbsp;size&nbsp;is&nbsp;bigger&nbsp;than&nbsp;250k.&nbsp;I&nbsp;send&nbsp;it&nbsp;by&nbsp;mail&nbsp;to&nbsp;another&nbsp;person&nbsp;at&nbsp;ThinkGeo.&nbsp;  
&nbsp;Klaus

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**Author:** ![David](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/d/aeb1de/32.png) [@David](https://community.thinkgeo.com/u/David)\
**Post date:** [April 1, 2009, 7:25am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/6 "2009-04-01T07:25:07Z")

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Klaus,&nbsp;  
&nbsp;&nbsp;  
&nbsp;&nbsp;&nbsp;I&nbsp;got&nbsp;the&nbsp;screen&nbsp;shots,&nbsp;thanks.&nbsp;&nbsp;I&nbsp;can&nbsp;see&nbsp;what&nbsp;you&nbsp;mean&nbsp;now.&nbsp;&nbsp;I&nbsp;will&nbsp;have&nbsp;someone&nbsp;take&nbsp;a&nbsp;look&nbsp;at&nbsp;this.&nbsp;&nbsp;It&nbsp;took&nbsp;me&nbsp;awhile&nbsp;to&nbsp;get&nbsp;back&nbsp;with&nbsp;you&nbsp;as&nbsp;I&nbsp;have&nbsp;been&nbsp;out&nbsp;the&nbsp;past&nbsp;few&nbsp;days.&nbsp;  
&nbsp;&nbsp;  
&nbsp;David

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**Author:** ![David](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/d/aeb1de/32.png) [@David](https://community.thinkgeo.com/u/David)\
**Post date:** [April 13, 2009, 12:36am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/7 "2009-04-13T00:36:34Z")

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Klaus,&nbsp;  
&nbsp;&nbsp;  
&nbsp;&nbsp;&nbsp;We&nbsp;are&nbsp;having&nbsp;a&nbsp;hard&nbsp;time&nbsp;re-creating&nbsp;this&nbsp;gap.&nbsp;&nbsp;We&nbsp;might&nbsp;have&nbsp;fixed&nbsp;this&nbsp;though.&nbsp;&nbsp;Would&nbsp;it&nbsp;be&nbsp;possible&nbsp;for&nbsp;you&nbsp;to&nbsp;send&nbsp;to&nbsp;Support&nbsp;two&nbsp;images&nbsp;next&nbsp;to&nbsp;each&nbsp;other&nbsp;that&nbsp;show&nbsp;the&nbsp;gap?&nbsp;&nbsp;We&nbsp;could&nbsp;then&nbsp;test&nbsp;it&nbsp;here&nbsp;and&nbsp;make&nbsp;100%&nbsp;what&nbsp;the&nbsp;status&nbsp;of&nbsp;it&nbsp;is.&nbsp;  
&nbsp;&nbsp;  
&nbsp;David

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**Author:** ![klaus\_zimmerli](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/k/8e8cbc/32.png) [@klaus\_zimmerli](https://community.thinkgeo.com/u/klaus_zimmerli)\
**Post date:** [April 23, 2009, 12:24am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/8 "2009-04-23T00:24:47Z")

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David,

Sorry&nbsp;for&nbsp;my&nbsp;late&nbsp;answer.&nbsp;The&nbsp;files&nbsp;will&nbsp;be&nbsp;passed&nbsp;to&nbsp;you&nbsp;from&nbsp;another&nbsp;person&nbsp;as&nbsp;they&nbsp;are&nbsp;to&nbsp;big&nbsp;to&nbsp;post&nbsp;in&nbsp;this&nbsp;forum.

Klaus

&nbsp;

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**Author:** ![David](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/d/aeb1de/32.png) [@David](https://community.thinkgeo.com/u/David)\
**Post date:** [April 27, 2009, 7:26am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/9 "2009-04-27T07:26:30Z")

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Klaus,&nbsp;  
&nbsp;&nbsp;  
&nbsp;&nbsp;&nbsp;Someone&nbsp;should&nbsp;be&nbsp;sending&nbsp;you&nbsp;a&nbsp;test&nbsp;layer&nbsp;to&nbsp;verify&nbsp;if&nbsp;the&nbsp;gap&nbsp;still&nbsp;exists.&nbsp;&nbsp;Let&nbsp;me&nbsp;know&nbsp;how&nbsp;it&nbsp;works.&nbsp;  
&nbsp;&nbsp;  
&nbsp;David

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<div class="post-metadata">

**Author:** ![klaus\_zimmerli](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/k/8e8cbc/32.png) [@klaus\_zimmerli](https://community.thinkgeo.com/u/klaus_zimmerli)\
**Post date:** [April 28, 2009, 12:49am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/10 "2009-04-28T00:49:00Z")

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David&nbsp;  
&nbsp;I’ve&nbsp;check&nbsp;the&nbsp;‘TempGeoTiffRasterLayer’&nbsp;successfully.&nbsp;I&nbsp;couldn’t&nbsp;point&nbsp;out&nbsp;an&nbsp;other&nbsp;problem,&nbsp;as&nbsp;mentioned&nbsp;you&nbsp;can&nbsp;include&nbsp;the&nbsp;changes&nbsp;in&nbsp;your&nbsp;next&nbsp;main&nbsp;release.&nbsp;Thanks&nbsp;for&nbsp;resolving&nbsp;the&nbsp;problem.&nbsp;  
&nbsp;Klaus

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**Author:** ![David](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/d/aeb1de/32.png) [@David](https://community.thinkgeo.com/u/David)\
**Post date:** [April 28, 2009, 1:59am UTC](https://community.thinkgeo.com/t/loading-raster-images-from-a-network-drive/301/11 "2009-04-28T01:59:05Z")

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Klaus,&nbsp;  
&nbsp;&nbsp;  
&nbsp;&nbsp;&nbsp;Good&nbsp;news.&nbsp;&nbsp;Let&nbsp;us&nbsp;know&nbsp;anything&nbsp;else&nbsp;you&nbsp;run&nbsp;into.&nbsp;  
&nbsp;&nbsp;  
&nbsp;David