OldArcBugs

Calculating raster areas for intersecting polygons

What is the total surface area for each raster-class (value) within polyons X, Y & Z? Zonal Statistics will give me what I need if I break each classification out into it's own raster but that's kind of extreme.

The scenario is: I have a series land cover classification rasters derived from satellite images. I need to know how many square kilometers of each vegetation type there is in each game management district (which are defined by polygons).

"...this has been added to the software interface in the 9.0 release. In the interim you can continue to accomplish this somewhat manually using zonal statistics or through code using the IZonalOp::TabulateArea method. A sample of this method can be found in the ArcObjects? Developers Kit Help."

&set item = 0
&set cellX = 30; &set cellY = 30
&do zone &list [listunique somegrid.vat -info count]
   &set item = %item% + 1 
   &set area_%item% = %zone% * %cellX% * %cellY%
&end
&listvar area_*

No support for 1-to-many relationships for symbolizing or labelling

You are correct in that this functionality is not available in the software as of yet. ... "ArcGIS needs cross tab functionality so labels/symbology, etc. can be used when you have a 1:M or M:N relate". As of today, the status of this enhancement is 'postponed'. This means that it has been logged with development and is considered a valid issue but it will not be considered immediately. I have sent a request on your behalf to Redlands to have you added to this enhancement as a user who would like to see this fixed sooner rather than later. Right now the only option is to reverse the relate and make a join since joined fields can be seen in labelling and symbology."

ArcMapOneToMany? - exploring possible workarounds

mhwilkie - 22 Jul 2003

Shortcut keys don't work in Style Manager

MattWilkie - 30 Jun 2003

Can't select after turning off Default Annotation Group

MattWilkie - 30 Jun 2003

'word spacing' has no effect on splined text

In ArcMap 8.2, the "word spacing" and some other character formatting commands have no effect on splined text. On the fly projected text and any text with more than 2 control points is subject to the same limitation. See SplineTextFormattingBug? .

MattWilkie - 01 Oct 2002

Can't select annotation when default group not visible

In ArcMap 8.2, one can't select annotation elements on a named annotation group when the default annotation group is not visible. See SelectAnnotationBug? .

MattWilkie - 01 Oct 2002

ASCIIGRID doesn't verify prj file is valid

If the user doesn't do anything right away which checks the grid's projection the bad projection file can go months without being discovered. Any subsequently derived grids will also have invalid prj.adf files. To fix this kind of grid simply remove the "prj.adf" file. If you are lucky you will know what the projection is supposed to be and can PROJECTDEFINE it.

Note: this same bug is likely to occur with other comamnds too, FLOATGRID for instance.

-- MattWilkie - 12 Mar 2004

ArcMap labels to annotation crash on undisplayed layer

(fatal) Converting labels to annotation for an undisplayed theme crashes arcmap

I repeated your steps but it crashed without the BOOM! - actually someone beat you to that bug as of September 9th 2003 (CQ00174940). Hopefully this will be fixed for 9.0. I personally believe that the option should simply be greyed out... -- JC

mhwilkie - 10 Oct 2003

ArcCatalog? crashes on copy empty feature dataset

1. Create a personal database,
2. create new feature dataset
3. select feature dataset > r-click > copy
4. r-click > paste
5. OK
6. BOOM!

ArcMap crashes on open

"Error: ArcMap.exe has generated errors and will be closed by Windows"

This error can be caused by one or more system conflicts. This is a general Windows error that can have an innumerable amount of causes and solutions. Contrary to the error message, there is no log file created. See the ESRI support doc linked above for the complete troubleshooting procedures.

MattWilkie - 04 Nov 2002

"Display resolution in TOC" screws up Layout Zoom tools

In ArcMap 8.2, when the properties for a raster layer are set to "Display resolution in table of contents" the Layout Zoom tools appear to be zooming the dataframe instead of the layout. More details in LayoutShiftBug? .

MattWilkie - 26 Sep,1 Oct 2002

adding X,Y text data to ArcMap fails with SQL error

ArcMap pukes on files with certain non-alphanumeric characters in their name, most aggravating the hyphen "-" is one of them. http://forums.esri.com/Thread.asp?c=93&f=1149&t=68750&mc=3#178830

MattWilkie - 23 Jul 2002

shapearc ignores precision of source file

The ArcInfo command shapearc creates a single precision coverage regardless of the shapefile's precision unless the environment is set with precision double double. E.g. precision double highest is ineffective.

Work around: use the commands layer define and layerexport instead.

MattWilkie - 19 Sep 2002

layerexport ignores projection when shapefile to coverage

The ArcInfo command layerexport always creates coverage with no projection regardless of whether the shapefile.prj exists or not.

Test case:

   LAYER DEFINE xxlayer1 shapefile merged_qoa.shp LINE
   LAYEREXPORT xxlayer1 COVERAGE merged_qoa Line

MattWilkie - 19 Sep 2002

Close table before Stop Edit crash

When Editing in ArcMap in a table, if you do not save your edits and "Stop" Editing before closing your table, it will crash ArcMap. This is very frustrating because you loose all your other edits.

Solution for the time being: NEVER close your attribute tables in ArcMap while in Edit Mode.

-- Manon - 14 Aug 2003

ArcCatalog? crashes on copy feature dataset

1. Create a personal database,
2. create new feature dataset
3. select feature dataset > r-click > copy
4. r-click > paste
5. a dialog titled "Data Transfer" opens. It looks like the intent of the dialog is to rename the target, however the field is not editable.
6. Press OK
7. !boom!

Might have something to do with unsipported characters in the name, like a space (which begs the question of why you are allowed to create a feature dataset with a space in it...)

mhwilkie - 14 Aug 2003

ArcMap sketch tools unavailable for covers with polygon topology

http://forums.esri.com/Thread.asp?c=93&f=987&t=65600&mc=6

MattWilkie - 24 Jul 2002

ArcMap crashes when finishing a sketch and snapping a feature less than 0.00x apart

The title of this bug is not necessarily accurate. i.e. the crash may have nothing to do with the coordinates' distance apart, that is just my best guess as to what the cause is.

ESRI Canada Incident# 39823: (matt's pooter)/GIS/ESRI-tech/Incident#39823/

ESRI's response is "convert to shapefile, edit, and then convert back to a cover". Sheesh.

I don't know how much we can trust ArcEditor? v8. There is something weird going on here. I ran the nodeerrors? ArcMap macro on the nqfntt cover (AdminBoundaries? poject) and found a polygon with one gap in it. Because of the extend/trim bug I DROPFEATURE the polygon cover, did the extend edit, and then CLEANED the cover, building a poly. A couple of the polys did not close so I ran the nodeerror macro again - 5 dangle errors showed up, all gaps of less than 1 cm. I fixed one of the gaps and CLEANED again, this time the polygons were all closed. So where the hell did those other four dangle errors go? The second clean should not have fixed them because the tolerance was maxed out (e.g. <0.000000001 when the gaps were 0.00x -- as reported by the Arcmap measure tool).

Status: Unresolved.

MattWilkie - 23,31 Jul 2002

Unable to select or edit elements at small zoom level

If you zoom in enough, there is a good chance you won't be to select or edit the elements which you can see plain as day in front of your face. Very frustrating.

Status: Unresolved.

MattWilkie - 01 Aug 2002

Weird gaphic element selection behaviour

Related to the above bug. Sometimes a graphic element which is a long way away (e.g 700km)from where you are looking, off screen for instance, is selected instead.

Both of these bugs are frequently experienced when trying to select and delete the markers left behind from the NodeErrors? macro.

I suspect these occur when the snapping tolerance is set to map units instead of pixels.

Status: Unresolved.

MattWilkie - 01 Aug 2002

Sometimes on 'Save Edits' Arcmap will silently and completely crash.

Not much more to say here except save early and save often.

Status: Unresolved.

MattWilkie - 01 Aug 2002

'Save Edits' in ArcMap can move your geometry.

See AdminBoundaries? for details.

Status: Unresolved.

MattWilkie - 20 Aug 2002

Coordinate Drift between datatypes

This one is very disturbing. In ArcMap linework from different datasources, which were all generated from the same source dataset, do not line up on top of each other. To see it, open 250k watercourses from the ArcLibrary? , Skyraider SDE, and an AdminBoundaries? coverage (must be new, not from z:\arcdata\...). Zoom in until the lines drift apart. yech.

True the vertexes are only a centimeter to a millimeter apart. Now. But what happens after years of data processing? Do centimeter gaps turn into meter gaps?

See CoordinateDrift? for an attempt to isolate and identify the culprit.

Status: Partially resolved. Not a bug but a (probably unaddressable) limitation of the data models.

MattWilkie - 16 Sep 2002

Die silently on select "size & position"

On opening the project 4 error messages are seen: "Raster Data Objects Error. Invalid Raster dataset. Failed to insert picture element." After okaying the error messages the map compisition opens, with all of it's data layers intact and visible. 2x-click anywhere in the Layout View panel, select Size & Position ,whammo - SilentDieOnSize?

MattWilkie - 04 Nov 2002

Measured grids round off errors

when producing a UTM grid and you want to round the number off, ArcMap rounds off from the first digit rather than the decimal point. So for example northings are rounded off to the nearest thousand while easting are rounded to the nearest ten thousand when what actually want is both of them rounded to the nearest thousand.

Gerry Perrier discovered this and is supposed to write it up

-- 13 June 2003

REGIONDISSOLVE screws up attributes

Incorrect results:

Arc: regiondissolve watersheds # order_2 order_2 poly

Arc: list watersheds.pat 1 2 order_2
Record  order_2
     1
     2  PORCUPINE R.           # <- original attribute

Arc: list watersheds.patorder_2 1 2 order_2
Record  order_2
     1  &#9786;   &#9786;   PORCUPINE R.   # <- resultant attribute
     2  &#9787;   &#9787;   PEEL R.

Correct results:

Arc: regiondissolve watersheds test order_x order_2 poly
Arc: list test.patorder_x 1 2 order_2
Record  order_2
    1  PORCUPINE R.
    2  PEEL R.

Oh brother. I duplicated the error 3 times before I sent it to ESRI. Today, using exactly the same data and exactly the same steps, it all works like it is supposed to.

Convert Labels to Annotation hangup.

Project: GIS2003-020, Eagle Plains Ecoregion, Landsat-Mosaic.mxd

When converting qpark labels to annotation geodatabase.

Two prior runs were successful, and speedy. However polygons which were not entirely within the dataframe did not have labels placed. The View > Overflow Labels window remained empty.