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Esri EADP19-001 Exam - Topic 6 Question 48 Discussion

Actual exam question for Esri's EADP19-001 exam

Question #: 48
Topic #: 6

[All EADP19-001 Questions]

When is an ArcGIS user required to convert a triangulated irregular network (TIN) surface of elevation to a raster?

Awhen generating contours

Bwhen extracting slope information

Cwhen creating the steepest path

Dwhen performing map algebra

Show Suggested Answer

Suggested Answer: B, D

by Kris at Jul 01, 2024, 08:28 AM

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Laine

9 months ago

I thought steepest path could work with TINs directly?

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Lashawna

10 months ago

Definitely when performing map algebra too!

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Joseph

10 months ago

Wait, can you really do slope extraction directly from TIN?

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Pansy

10 months ago

Totally agree with that!

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Vallie

10 months ago

You need to convert TIN to raster for generating contours.

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Jennie

10 months ago

I'm pretty confident that performing map algebra definitely requires a raster, so maybe that's when we need to convert a TIN.

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Omega

11 months ago

I feel like we discussed steepest path analysis, but I can't recall if it specifically needed a raster or if TINs could be used directly.

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Tricia

11 months ago

I remember practicing a question about extracting slope information, and I think that might also require a raster format.

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Shawnna

11 months ago

I think we talked about converting TINs to rasters when generating contours, but I'm not entirely sure if that's the only time.

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Mitsue

11 months ago

Okay, I think I've got it. The question is asking when you'd need to convert a TIN to raster, and the answer is when you're doing things like generating contours, extracting slope, or performing map algebra. Those types of spatial analysis work better with raster data.

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Nu

11 months ago

Ah, I remember learning about this in class. I believe the key is that raster data is better for certain spatial analysis functions like map algebra. So if you need to do that kind of analysis on elevation data, you'd want to convert the TIN to raster first.

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Tijuana

11 months ago

I'm a bit confused on this one. Is it something to do with the different ways TIN and raster can represent slope or contours? I'll have to review my notes on those data structures.

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Laura

11 months ago

Okay, I think I know the answer to this one. TIN data is better for representing continuous surfaces like elevation, while raster is better for discrete data. So I'd guess we need to convert to raster when doing map algebra or other operations that work better with grid-based data.

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Flo

11 months ago

Hmm, this seems like a tricky question. I'll need to think carefully about the differences between TIN and raster data formats and when each would be more appropriate.

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Lucina

11 months ago

Based on the information provided, I think the Lightning Platform Plus license might be the best fit. It supports a large number of custom objects and has high API call limits, which should accommodate UC's needs.

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Wilbert

11 months ago

Okay, let's see here. The key is to focus on the advantages mentioned in the answer choices. I think I can eliminate a few of these pretty quickly, but I'll need to think through the remaining options to determine the two best ones.

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Eva

1 year ago

This question is a piece of cake! Obviously, the answer is A. Contours are much easier to generate from a raster than a TIN.

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Jesusita

1 year ago

Yeah, converting to a raster is the way to go for generating contours. It's a common practice in ArcGIS.

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Yoko

1 year ago

I agree, it definitely simplifies the process. Raster data is much more versatile for generating contours.

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Eleni

1 year ago

I think the answer is A too. It just makes sense to convert the TIN to a raster for generating contours.

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Dexter

1 year ago

Ah, I remember learning about this in my GIS class. The answer is definitely C - you need a raster to create the steepest path.

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Fernanda

1 year ago

I remember struggling with this concept at first, but converting to a raster makes sense for calculating slope and finding the steepest path.

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Dannie

1 year ago

Yes, that's correct. It's essential for analyzing the terrain and determining the steepest path.

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Bong

1 year ago

I think you're right, we do need to convert the TIN to a raster for creating the steepest path.

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Johana

1 year ago

Yeah, you need a raster for that calculation.

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Patti

1 year ago

Oh, I see. Thanks for clarifying.

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Dorothy

1 year ago

No, it's actually C) when creating the steepest path.

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Kimberlie

1 year ago

I think the answer is A) when generating contours.

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Nickolas

1 year ago

Wait, is this a trick question? Do I get extra credit if I choose the most complex-sounding option?

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Xenia

1 year ago

B) when extracting slope information

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Dorthy

1 year ago

A) when generating contours

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Alpha

1 year ago

I believe it's also important to convert TIN to raster when performing map algebra for spatial analysis.

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Catina

1 year ago

I agree with Leatha. Converting TIN to raster is necessary for generating accurate contours.

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Ben

1 year ago

Haha, I bet the exam writer is chuckling at all the confused students trying to figure this one out.

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Ma

1 year ago

D) when performing map algebra

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Celeste

1 year ago

C) when creating the steepest path

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Devorah

1 year ago

B) when extracting slope information

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Linwood

1 year ago

A) when generating contours

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Leatha

1 year ago

I think an ArcGIS user needs to convert TIN to raster when generating contours.

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