AutoCAD 2017: PDF Data Import by Choosing an Underlay (Part 2)

At Ideate, we are reviewing Autodesk's latest software releases in an effort to detail the most useful new features for you. In this post, I am going to discuss using the PDF Import command to import geometry, text and images from a PDF underlay in AutoCAD 2017. 

To learn how to use the PDF Import command to bring in data by choosing a file, check out last week's post, AutoCAD 2017: PDF Data Import by Choosing a File (Part 1).

The beauty of using the PDF import command for an underlay is the ability to individually choose objects from a PDF to import. For example, you may want the linework from a PDF, but not the titleblock.

First things first; prior to starting the PDF import command, I recommend turning off PDF layers that have objects you do not want to import. This will make choosing the objects you do want to import much easier. After editing the PDF underlay’s layers, go ahead and start the PDF Import command. You can find this command on the insert tab of the ribbon, the application menu, or the PDF Underlay tab. You can also type PDFIMPORT in the command line.

After starting the command, you need to select the PDF underlay option. Next, the command line will ask you to "Specify first corner of area to import or [Polygonal/All/Settings]." You can either use a selection box to select the objects you want to import, or you can invoke the Polygonal or All options to select items. The settings option brings up the PDF Import Settings dialog box. For an explanation of these options, refer to Part 1 of this post.

Once you choose the objects you want to import, the command line will ask if you want to keep, detach, or unload the PDF Underlay. Choose which option makes the most sense for you. The data will now import into the drawing. A status bar at the bottom right of the AutoCAD interface will show you how far along the import is. Please note, it may take a few minutes to import all the data.

If you get a message that says "No objects were imported," the most likely cause is xref pathing. In order for the PDF import command to work, the PDF needs to be underplayed using full path. If it is set to relative path, you will get the following message and your data will not import.

This is a quick fix. Open the xref manager and re-path the underlay. Select the ellipse button for the underlay to re-path it.

Using the PDF Import command on a PDF underlay is a quick way to insert specific PDF data from a PDF. After starting the PDF import command and choosing the underlay, you can select the PDF data you want to import, then determine what happens to the underlay.

For a closer look at importing a PDF by choosing an underlay watch my video on our Ideate, Inc. YouTube channel.

Thank you for reading. For information on training and consulting for the various products Ideate services, visit our website.

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Kate Ming
AEC Application Specialist 
Kate is a California licensed civil engineer with a BS in Civil and Environmental Engineering from UC Berkeley. Prior to Ideate, she worked at a multinational company for four years doing general civil design on large infrastructure projects. She is versed in roadway, rail, utility design and site development. She also has experience with utility demand analysis and Low Impact Development plans. As a Civil 3D Autodesk Certified Professional Kate provides training and support for Civil 3D, AutoCAD, and InfraWorks.

AutoCAD 2017: PDF Data Import by Choosing a File (Part 1)

AutoCAD 2017 is here and with it comes the ability to import geometry and text directly from a PDF. No longer will you have to draw over PDF lines to create the PDF line work in a drawing. Now, you can import a PDF directly into a drawing and the data will automatically be generated. There are, however, two methods: you can import an entire PDF by choosing the PDF from a file, or by choosing PDF data from a PDF Underlay. 

For this post, I will focus on importing data by choosing a PDF from a file, and discuss the various settings options. Please do watch out for my next post which will address importing PDF data from an Underlay.

To get started You can type PDFIMPORT to start the commandor you can find the "import PDF" command on the insert tab of the ribbon, as seen below.

Additionally, you can find the PDF import command under "Import" on the application menu, as seen below.

Press "Enter" to open the browser dialog box. Browse to the PDF you want to import and select it. Once you've selected the PDF, the following Import PDF dialogue box will pop up.

The Import dialog box options are straight forward for the most part, however, a few options warrant additional explanation.

Choosing the page to import

If you have a multi-page document, you can select an individual page from the full document to import. A preview area shows the pages. To select the page that you want to import, left click on the preview. The page highlighted is the one that will be imported. If you want to only view the page to be imported, you can select the single page preview button. 

Scaling, Inserting, Rotating

Scaling can be tricky as AutoCAD does not automatically scale the PDF geometry. In order to scale properly, you have to understand the size of the PDF and factor it into the import. There is a box in the Import PDF dialog box specifically for the scale. Additionally, you can choose to rotate the data upon importing.

If you do not choose the Specify Insertion Point on the screen options, the lower left corner of the PDF is inserted at (0,0) in the DWG. Since PDFs do not have world coordinate systems and scales as part of their information, you will need to insert the PDF by choosing the insertion point option, then move the data once the line work is imported. I recommend importing as a block to make moving and scaling easier. Once you have moved and scaled the block, you can explode it to access the individual geometry, text and images.

PDF Data to import

You must choose as least one of the three data import options in order to import: vector geometry, true type text, and/or raster images.

All lines, hatches, arcs, non-true type fonts and other geometric objects are considered vector geometry. Hatches are brought in as individual lines and not as an AutoCAD hatch pattern. The background shading is brought in as a solid hatch, when the solid fills option is selected. If the solid fills option is not selected, the shading within a hatch pattern will not be imported.

It’s worth noting that unless text is true type font, all text comes in as polylines and not text. This means you cannot edit the text using the AutoCAD text editor because it is considered geometry. Currently, there is no way to convert the polylines representing text to actual text.

"Raster images" refer to any images contained in the PDF. Images are imported and saved in a PDF image folder. You can find the PDF image folder in the options dialog box.

The PDF creation method determines how the data is imported. If the PDF was created from an AutoCAD file, the line work comes in as AutoCAD line work. However, if the PDF is an image or a free hand drawing, it comes in as an image and not as line work.

Layers

There are three factors that determine what layer objects will go in the drawing. Layer management is dependent on the layers that are in the PDF, which is dependent on how the PDF was created. If it was created from an AutoCAD file it has the layers from the drawing file. This is convenient because you can choose the Use PDF Layers option to create the same layers that were in the original AutoCAD drawing. This option will create the exact same layers, but add a PDF_ at the beginning of the layer name. A layer that was originally called chairs, will now be called "PDF_chairs."

If you choose to Create Object Layers during import AutoCAD will create new layers specific to PDF object types. The object types and their corresponding new AutoCAD layer names are in the table below.

Object Type	Objects included	New AutoCAD layer name
Geometry	Lines, arcs, polygons, polylines etc.	PDF_Geometry
Solid Fills	Fills created from hatch patters	PDF_Solid fills
Text	Text	PDF_Text
Raster	Raster	PDF_Images

Additionally, if you import multiple PDFs with this option selected, a number will be added to the layer to indicate which PDF the layer is from. For example, PDF1_Geometry, PDF2_Geometry, etc.

The last option for layer creation is Current Layer, which places all objects created on whatever layer is current.

Import options

When you import as a block, all objects (geometry, text and raster) are combined together as one object. When imported, the block will be on the current layer while the components within the block follow the layer management options you set in the layer section of the import box.

Join line and arc segments options join contiguous objects into a single polyline wherever possible.

Converting solid fills to hatches converts 2D solid objects to a hatch. Wipeout objects and wide polylines are included as fills. 2D solids that are inferred to be arrow heads will not be included. Solid fills are imported with a 50% transparency so that you can see objects below it.

Apply Lineweight properties will take the lineweights from the PDF.

Lastly, there is the infer linetypes from collinear dashes option. This will create dashed linetypes. Without checking that box, each dash will be imported as an individual line.

After you’ve hit "OK" and started the import process, it may take a few minutes to import the data, so be patient. A progress bar shows up at the bottom right of the screen to indicate how far along in the process the import is. 

In summary, the PDF Import command is an easy way to obtain geometry, true type text, and raster images from a PDF. Again, I definitely recommend importing a PDF as a block using the specify insertion point option and then rotating and moving the block to position where you need it. From there, you can explode the block to obtain access to the imported data. There are several layer management options for the imported data. There are also additional import options including joining arch and line segments, applying lineweights, inferring lines from collinear line segments and others.

To review this information in more depth, please watch my corresponding video AutoCAD 2017 PDF Data Import by Choosing a File (Part 1).

I encourage you to play around with this new exciting command and see what it can do for you.

For more information on AutoCAD, as well as training and consulting for the various products Ideate services, visit our website.

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Kate Ming
AEC Application Specialist 
Kate is a California licensed civil engineer with a BS in Civil and Environmental Engineering from UC Berkeley. Prior to Ideate, she worked at a multinational company for four years doing general civil design on large infrastructure projects. She is versed in roadway, rail, utility design and site development. She also has experience with utility demand analysis and Low Impact Development plans. As a Civil 3D Autodesk Certified Professional Kate provides training and support for Civil 3D, AutoCAD, and InfraWorks.

US Survey Feet is Finally Here

As a Civil Engineer and Infrastructure Application Specialist at Ideate, I'm celebrating along with Surveyors, Mappers, and Civil Engineers in nine states… AutoCAD 2017 based products now support US Survey Feet! 

It's been something we've wanted for years because many of us assign our drawings a State Plane Coordinate System (SPCS) using AutoCAD Map 3D or AutoCAD Civil 3D. US Survey Feet is preferred by California, Texas, Colorado, Connecticut, Maryland, Indiana, North Carolina, Nebraska, and Wyoming. The issue up until now, was that although Map 3D and Civil 3D functionality understood coordinate systems, and the difference between a US Survey Foot and an International Foot, underlying AutoCAD did not. AutoCAD tools to attach External References, insert blocks, and ReCap point clouds, auto-scale based on International Feet. The difference between a US Survey Foot (~0.3048006 meters) and an International Foot (0.3048 meters exactly) is quite small. Yet it makes a significant difference when you are working in large state plane coordinate values for mapping and civil engineering projects.

Now the sobering news… because 'US Survey Feet' is a new unit to AutoCAD (INSUNITS=21), potentially undesired automatic scaling of Xrefs will occur if we are not careful. Why do I say that?

Externally referencing a ‘legacy’ engineering drawing (pre 2017), set to Intl Feet, into a 2017 'US Survey Feet' units drawing will now be automatically scaled, regardless of whether the application performing the reference is AutoCAD 2017, Map 3D 2017 or Civil 3D 2017. This will also occur even if the referenced drawing is assigned a coordinate system based on US Survey Feet. Remember that attaching an Xref is an AutoCAD based tool. The auto-scaling will not be obvious in the Attach External Reference dialog because the default Drawing Units length precision in most drawings is set to four decimal places.

Now, if you set your Drawing Units length precision to six decimal places, you'll see a scaling factor of 0.999998.

This is the ratio of Intl Feet to US Survey Feet, which comes to about 2 feet for every 1 million feet. It's negligible for low coordinate value drawings, but not for our state plane coordinate drawings. 

In the below screen shot, I've externally referenced an Intl Foot drawing into a new 'US Survey Feet' drawing. Note that the coordinates of the same point differ by -12.51, -4.07. 

Also note that 'US Survey Feet' is not understood by AutoCAD versions prior to 2017. You'll get the below warning upon changing the units. An AutoCAD 2017 created drawing can still be opened by AutoCAD 2013-2016.

Lastly, some of you may be aware of an old undocumented AEC command called -DWGUNITS. It's occasionally used to address block insertion scaling of 12x or 1/12 even when INSUNITS is correct in both drawings. Because it's old and undocumented, it does not include US Survey Feet.

Although it's great news that Autodesk finally added US Survey Feet to AutoCAD's supported units, we may not fully realize the benefit for a few more releases. Until then, I recommend setting the Drawing Units length precision to six decimal places for all drawings assigned US Survey Feet. Doing so will give you the visual prompt of the auto-scaling AutoCAD is about to perform.

For more information on training and consulting for the various products Ideate services, visit our website at www.ideateinc.com

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Daniel Armstrong
ENI Application Specialist
Daniel is an Application Specialist for Infrastructure Solutions at the Ideate Sacramento office. He is a California licensed Civil Engineer and LSIT with over 9 years land development design experience and 6 years Civil–GIS software consulting. Additionally, he provided 6 years of engineering support at a municipal public works department. At Ideate, Daniel assists Civil Engineering and Surveying firms in maximizing their utilization of AutoCAD Civil 3D through consulting, training, mentoring, and technical support. He conducts standard classroom and custom training on AutoCAD, Map 3D, and Civil 3D.

AutoCAD 2017 Hotfix 1

Here at Ideate, we pride ourselves on being proactive in keeping our customers informed of Autodesk product service packs and hotfixes. Yesterday, the Autodesk AutoCAD Product Team released Hotfix 1 for AutoCAD 2017. Per the Readme file, Hotfix 1 addresses the following issues:

• Layers of Xrefs that are frozen in viewports are plotting ellipses.
• In some languages the model documentation commands are not working.
• The number of hits for GetLineContainment is incorrectly counted.
• Xrefs show as needing reloading when opened from a network path to a  shared folder.

The easiest way for you to download and install Hotfix 1 is via the new Autodesk Desktop App. If the new Autodesk Desktop App didn’t display a notification in your system tray, go to the Windows start button→All Programs→Autodesk→Autodesk Desktop App.

The Autodesk Desktop App replaces the older Autodesk Application Manager upon installing AutoCAD 2017. It is subscription aware and notifies you of service packs, updates, hotfixes, extensions, and learning content for your installed 2015-2017 products. You can categorize your updates for each product by selecting the product icon on the left Navigation Bar. Unfortunately, unlike the old Application Manager, you’re currently unable to tell the App to ignore undesired extensions.

Thank you for reading. For more information on other Autodesk products, and information on training and consulting for the various products Ideate services, visit our website at www.ideateinc.com.

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Daniel Armstrong

ENI Application Specialist 

Daniel is an Application Specialist for Infrastructure Solutions at the Ideate Sacramento office. He is a California licensed Civil Engineer and LSIT with over 9 years land development design experience and 7 years Civil–GIS software consulting. Additionally, he provided 6 years of engineering support at a municipal public works department. At Ideate, Daniel assists Civil Engineering and Surveying firms in maximizing their utilization of AutoCAD Civil 3D through consulting, training, mentoring, and technical support. He conducts standard classroom and custom training on AutoCAD, Map 3D, and Civil 3D.