Creating Triangular Plots using Excel

Share

Facebook
Twitter
LinkedIn

This is a guest post by Faseeh, one of the Excel Ninja’s at our forum.

Triangular plot…! What is it?

Recently, a Chandoo.org forum member asked this,

I want to be able to make a graph that, in some aspects, looks like below, but I have no idea how to do it at all.

Triangular plot example - used in gas composition digrams

After seeing it, I said to myself in Barney Stinson’s tone, ‘Challenge Accepted!

The final plot is like this:

Triangular plot made using Excel

Making triangular plot in Excel – Tutorial

The first step to create such a chart starts from a manual drawing of how your chart will be looking like; at least you need to mark some important connecting points that will make smaller triangles.

The trick in this chart is simply to locate points in all three sides of the triangle and connect them in a way that results in smaller triangle. Here is a step by step approach to make this chart:

  1. Make a rough sketch of the triangle. Divide each side of the triangle roughly into the number of segments that you want, each side with equal number of segments (in this case 05 segments). And give each of them a number including corners of the triangle
    Triangle plot outline. This helps us identify various points in the chart.
  2. Now we can split this chart into three types of lines, horizontal, tilted towards right, tilted toward left.
    Individual lines that make the triangle plot
  3. For each of these lines we need to join certain points and when we combine these lines into a single series we will get our desired chart. So let’s list down the points in each line.

    Horizontal Lines (L1): Point 01, 02, 03, 04, 06, 05, 07, 08, 10, 09, 11.
    Right Lines (L2): Point 01, 11, 09, 12, 13, 07, 05, 14, 15, 03, 02
    Left Lines (L3): Point 02, 11, 10, 15, 14, 08, 06, 13, 12, 04, 01

  4. Now we need to setup a table where the coordinates of these points are listed in tabular order, like this:

    Data & calculations for triangle plot in Excel
    This can be done by using trigonometric ratio of sine and cosine, by representing each point in terms of Polar Coordinates [ These coordinates represent each point in terms of a distance “R” and an angle represented by Greek alphabet Theta (q), Line 01 makes an angle of 0° from X-Axis, Line 02 of 60° and Line 03 of 120° from +ive X- Axis, these details can be simply skipped if you don’t like math  😉 ]
    Avoiding the details of trigonometry you can simply use following two formulas to get these values…

    For Value of X (Ordinate) you can use the following formula:
    =IF(O6=”H”,N6*COS(RADIANS(Q6)),IF(O6=”L”,N6*COS(RADIANS(Q6)),$D$5+N6*COS(RADIANS(Q6))))

    For Y (Abscissa) you can use following:
    =IF(O6=”H”,N6*SIN(RADIANS(Q6)),IF(O6=”L”,N6*SIN(RADIANS(Q6)),N6*SIN(RADIANS(Q6))))

  5. Once this Lookup Table is created we need to create another table where we list points in accordance to the Lines that we have already created. We will use VLOOKUP () to fetch the corresponding coordinate through this formula and we will do this for all the three Lines. The VLOOKUP() simply looks for the point in the left most column of the first table and bring the corresponding values from the 3rd and 4th column to form the point in second table.
  6. When we are done with bringing the coordinates of all of these points we just need to plot a Scatter Chart. Now use a XY scatter chart to plot the data. You need to add only one series, actually there are three types of lines but we can accommodate them in just one series. When they overlap, they will give smaller triangles in result.

Download Triangular Plot workbook

Click here to download the chart. Examine the formulas & chart series to understand how this is made.

Added by Chandoo

Do you make such complex charts for your work?

I will be honest. I never had to make a triangle plot. But then, I never had to make Ratatouille either. That doesn’t make me appreciate both of them any less. I think this chart shows fantastic technique. It also proves that Excel is highly flexible if you know which bolt to turn and which screw to tighten.

What about you? Do you make such complex charts or visual analysis for your work? What is the most challenging chart you have worked on? Please share using comments.

Shape up your Chart skills – Charts + Shapes

If your job involves making charts in all shapes and sizes, then you are in luck. Check out these tutorials to learn how to bend Excel charting rules to get any shape you want:

Thank you Faseeh

Many thanks to Faseeh for sharing this tutorial with all of us. I really enjoyed this and learned a few tricks from it.

If you like this chart, say thanks to Faseeh using comments.

Facebook
Twitter
LinkedIn

Share this tip with your colleagues

Excel and Power BI tips - Chandoo.org Newsletter

Get FREE Excel + Power BI Tips

Simple, fun and useful emails, once per week.

Learn & be awesome.

Welcome to Chandoo.org

Thank you so much for visiting. My aim is to make you awesome in Excel & Power BI. I do this by sharing videos, tips, examples and downloads on this website. There are more than 1,000 pages with all things Excel, Power BI, Dashboards & VBA here. Go ahead and spend few minutes to be AWESOME.

Read my storyFREE Excel tips book

Overall I learned a lot and I thought you did a great job of explaining how to do things. This will definitely elevate my reporting in the future.
Rebekah S
Reporting Analyst
Excel formula list - 100+ examples and howto guide for you

From simple to complex, there is a formula for every occasion. Check out the list now.

Calendars, invoices, trackers and much more. All free, fun and fantastic.

Advanced Pivot Table tricks

Power Query, Data model, DAX, Filters, Slicers, Conditional formats and beautiful charts. It's all here.

Still on fence about Power BI? In this getting started guide, learn what is Power BI, how to get it and how to create your first report from scratch.

38 Responses to “Time to showoff your VBA skills – Help me fix ActiveSheet.Pictures.Insert snafu”

  1. shokks says:

    I tried your code with 2003, it works.

    But, I know Addpicture does not take URLs anymore with 2007 onwards, perhaps its the same with picture.insert as well.

    http://support.microsoft.com/kb/928983/en-us

    The above link gives the solution as "picture fill in a shape such as a rectangle".

  2. Vince E. says:

    Tried to recreate this, but it worked fine for me. I just took the image of the error you showed in the post. Is there more info that can narrow this down a bit?

  3. Ian Hinckley says:

    Hi

    Not sure if this is what you're after, but I just tried this

    Sub Macro1()
    ActiveSheet.Pictures.Insert("http://www.google.co.uk/intl/en_uk/images/logo.gif").Select
    End Sub

    Tied a button to it on the sheet and it seems to work; hope this helps a little

    Ian

  4. Chandoo says:

    @All.. the issue is in Excel 2007. In 2003 ActiveSheet.Pictures.Insert seems to work fine. Unfortunately, I have design this in Excel 2007.. that is why I posted it here..

  5. Ian Hinckley says:

    v2

    Sub Macro1()
    Set n = ActiveSheet.Pictures.Insert("http://www.google.co.uk/intl/en_uk/images/logo.gif")
    With Range("c12")
    t = .Top
    l = .Left
    End With
    With n
    .Top = t
    .Left = l
    End With
    End Sub

    Ian

  6. Ian Hinckley says:

    That didn't come out very well. This positions at c12, so can change easily:
    Sub Macro1()
    Set n = ActiveSheet.Pictures.Insert("http://www.google.co.uk/intl/en_uk/images/logo.gif")
    With Range("c12")
    t = .Top
    l = .Left
    End With
    With n
    .Top = t
    .Left = l
    End With
    End Sub

    Works OK in 2007

    Ian

  7. Chandoo:
    Try 'ActiveSheet.Pictures.Insert'

    With ActiveSheet.Pictures.Insert("C:\Example.png")
    .Left = ActiveSheet.Range("A1").Left
    .Top = ActiveSheet.Range("A1").Top
    End With

  8. Jon Peltier says:

    activesheet.pictures.insert "C:\Documents and Settings\Jon Peltier\Desktop\2007 stuff\insert_charts_2007.png"

    Works for me in 2003 SP3 and in 2007 SP2.

    Check the URL, and make sure you have internet connectivity.

    What also works, and is newer (pictures.insert was supposedly deprecated in '97):

    activesheet.shapes.addpicture "C:\Documents and Settings\Jon Peltier\Desktop\2007 stuff\insert_charts_2007.png", false, true, 200,200,100,100

    Unfortunately you must specify dimensions (the last four arguments) and you don't necessarily know them. But the picture size is still related back to the original picture size, so you could use scaleheight and scalewidth to fix this.

  9. Chandoo: I just re-read your post.

    The code I posted works for me. However, I'm using a local picture. If you try to add a picture from the web, this won't work.

    I remember solving this problem before by adding a rectangle shape first, then using the Shapes.AddPicture method to get a picture from the web.

    I'll find that code and post it here.

  10. Chandoo says:

    Some more updates... The code "ActiveSheet.Pictures.Insert (path)" works fine in Excel 2007 at home. Strange it failed miserably on my work laptop. Do you think this has got something to do with SP2 of MS Office 2007 or something like that?

    @Ian, Jon: Thanks for the code snippets. I guess I will use my home installation of excel to do this.

  11. Chandoo:

    Try this on your work laptop:

    Sub test()
    ActiveSheet.Shapes.AddShape msoShapeRectangle, 50, 50, 100, 200
    ActiveSheet.Shapes(1).Fill.UserPicture _
    "http://www.datapigtechnologies.com/images/dpwithPig6.png"
    End Sub

  12. Jon Peltier says:

    I didn't mean to post code with a local file, because both approaches worked with an internet image as well. This is in Excel 2007 SP2.

    activesheet.pictures.insert "http://peltiertech.com/images/2009-07/col_area_noblanks.png"

  13. Jon: Looks like I have SP1 on my client machine! I wasn't paying attention.

    Just checked my home computer where I have SP2, and you're right...looks like they fixed it.

  14. Jon Peltier says:

    I didn't even bother testing in SP1, though I could if anyone cares enough.

  15. teylyn says:

    I'm afraid I don't have a solution, but I find it remarkable that after attaining a certain status in the Excel world, Chandoo does not need to post on an Excel discussion forum to get help for an Excel problem. Instead, he posts on his blog and all the gurus come rushing to his help.

    Isn't Web 2.0 great?

  16. Jon Peltier says:

    Teylyn - I saw Chandoo's tweet first, and followed the link back to his blog.

  17. Chandoo says:

    @Mike.. thank you. I have seen the fill rectangle solution before posting the query here. For that matter, I have also tried the solution of embedding a browser control on a spreadsheet. both of these seemed a bit extreme. That is why I have asked it here.

    But I guess I will end up using it if I had to build this in work laptop.

    @Teylyn: I have thought of posting this in a forum. (Unfortunately I have not been to any excel group in the last 5 years. Last time I was active was when I built a jave based excel sheet construction solution using POI.HSSF classes of Apache... ) After searching for a few hours, I found several forum posts where others had same problem and the solution recommended (using .left and .top parameters) is not working for me. Incidentally most of these solutions are from a certain Jon Peltier 😛

    I thought may be the problem is interesting for fellow blog readers. So I posted it here.

  18. Justin B says:

    Hi,
    Adapting the code in the question,

    [code]
    Sub InsPicture()
    pPath = "http://chandoo.org/images/pointy-haired-dilbert-excel-charts-tips.png"
    With ActiveSheet.Pictures.Insert(pPath)
    .Left = Range("a1").Left
    .Top = Range("a1").Top
    End With
    End Sub
    [/code]

    Seems to work fine

  19. Jon Peltier says:

    Looks like it was a problem in 2007 up to SP1, which was corrected in SP2.

  20. Chandoo says:

    @Jon.. seems like the case. I just checked the version at work laptop. it is 12.0.6331.5000 (SP1).

    Thank you so much every one. I really appreciate your time and suggestions in solving this.

  21. Jon Peltier says:

    Glad to help. I couldn't understand why something so straightforward wasn't working.

  22. Kieranz says:

    Hi All
    Is there a way of inserting a motion clip eg animated gif or swf or flv?
    Thks

    • Chandoo says:

      You can insert animated GIFs by inserting them in a browser control through VBA. For other types of movies, I can guess you can insert them as clip art.

  23. ashvini says:

    I WANT THE INSERT PICTURE BY USING COADING

  24. Lutz says:

    so currently i was struggling same as you, chandoo, with the insert picture method in excel 2007/10 from an url and came along your thread here.

    so i re-designed the code on the addshape method as mike was suggesting it and all of the sudden it works just fine.

    thanks alot to you guys, you were a great help
    a big salut from switzerland

  25. Santiago says:

    Hi guys,

    I need help copying and pasting an image with the path in a cell.
    I leave the code.

    And thank you very much!

    Sub Copiarimg()

    Dim pic As Picture

    With ActiveSheet

    Set pic = .Pictures.Insert(Range("f2").Value)

    With .Range("e9:g22")
    pic.Top = .Top
    pic.Left = .Left
    pic.Width = .Width
    pic.Height = .Height
    End With
    End Sub

  26. I've played around with the approaches in these comments, and the code below is what I've come up with. The ImagePath can be a local file or a URL. As Jon mentioned above, the trick is to set an arbitrary value for the width and height, then call the ScaleWidth and ScaleHeight methods afterward to reset the picture to its original size. Once the LockAspectRatio property is set, you can change the picture width and the height will automatically scale (or vice-versa).

    Sub AddPictureToRange(TopLeftCellAddress As String, ImagePath As String)

    Dim pic As Shape
    Dim l As Single, t As Single
    Dim temp As Single

    l = Me.Range(TopLeftCellAddress).Left
    t = Me.Range(TopLeftCellAddress).Top
    temp = 10# ' arbitrary value

    Set pic = Me.Shapes.AddPicture(ImagePath, msoFalse, msoTrue, l, t, temp, temp)
    pic.ScaleHeight 1#, msoTrue
    pic.ScaleWidth 1#, msoTrue
    pic.LockAspectRatio = msoTrue

    End Sub

  27. dip says:

    I need some help with inserting pictures. I have an excel file with a column of item numbers next to this row I want to insert a picture of this item. The pictures are coded with the item number so I tried to insert it with one of the codes above:

    Sub InsPicture()
    pPath = "http://img.bricklink.com/P/80/55236.gif"
    With ActiveSheet.Pictures.Insert(pPath)
    End With
    End Sub

    That worked but I need to do that for every row separtly.
    So I tried in the code
    pPath = "http://img.bricklink.com/P/80/"&Text(a1;"#")&".gif"

    But that gives errors.

    Anybody ideas?

  28. alex says:

    Hi Nicholas, I used your solution in a related problem in Excel 2003 and it worked flawlessly..thank you!

  29. Richard says:

    Hi Mike Alexander,

    Your solution with some changes was helpful in my problem in XL 2007, thanks.

  30. seejay says:

    Hi,

    thanks all. In addition, I had a problem with multiple pictures inserting (every new picture replaced the prior one). I've changed it a bit, may be helpful..

    Sub test()
    ActiveSheet.Shapes.AddShape msoShapeRectangle, 50 , 50, 100, 200
    ActiveSheet.Shapes(1).Fill.UserPicture _
    "http://www.datapigtechnologies.com/images/dpwithPig6.png"
    ActiveSheet.Shapes(1).Copy
    ActiveSheet.Paste
    End Sub

  31. Jon Peltier says:

    Try this instead:
     
    Sub test()
    ActiveSheet.Shapes.AddShape msoShapeRectangle, 50 , 50, 100, 200
    ActiveSheet.Shapes(ActiveSheet.Shapes.Count).Fill.UserPicture _
    "http://www.datapigtechnologies.com/images/dpwithPig6.png"
    End Sub

    • Kez says:

      Thanks to everyone, this thread has been very helpful. However, image inserting still doesn't work quite as expect for me.

      While I can get a picture inserted into an Excel 2010 worksheet using either:

      1) ActiveSheet.Shapes(ActiveSheet.Shapes.Count).Fill.UserPicture...
      2) ActiveSheet.Pictures.Insert(pPath), and
      3) Shapes.AddPicture...

      unfortunately the images all insert with a display size determined not by the actual pixel dimensions of the image but by the dpi resolution.

      So for example, if I insert two copies of the exact same 600x600 pixel image, one with a 300dpi resolution and the other with 72dpi, they display at vastly different sizes on screen.

      While this might be intended behaviour for Excel in order to maintain a WSYWIG printing layout, I actually need a way to insert the image based on the the actual pixel dimesnsions and ignoring the dpi resolution.

      Any help appreciated.

      Thanks
      Kez

  32. Kez says:

    Not doing an intentional bump, but realised I posted in rely to one of the repsonses here instead of to the main thread, so reposting.
    =====

    Thanks to everyone, this thread has been very helpful. However, image inserting still doesn’t work quite as expected for me.

    While I can get a picture inserted into an Excel 2010 worksheet using any of the below methods:

    1) ActiveSheet.Shapes(ActiveSheet.Shapes.Count).Fill.UserPicture....
    2) ActiveSheet.Pictures.Insert(pPath), and
    3) Shapes.AddPicture....

    unfortunately the images all insert with a display size determined not by the actual pixel dimensions of the image but by the dpi resolution.

    So for example, if I insert two copies of the exact same 600×600 pixel image, one with a 300dpi resolution and the other with 72dpi, they display at vastly different sizes in Excel on screen.

    While this might be intended behaviour for Excel in order to maintain a WYSIWYG printing layout, I actually need a way to insert the images based on the the actual pixel dimesnsions and ignoring the dpi resolution.

    Any help appreciated.

    Thanks
    Kez

  33. Kez says:

    Well, answered my own question 🙂

    For those who might be interested, you can use this function:

    Public Function GetPicDims(strFilePath As String, strFileName As String) As String
    GetPicDims = CreateObject("Shell.Application").Namespace((strFilePath)). _
    ParseName(strFileName).ExtendedProperty("Dimensions")
    End Function

    to get the dimensions of the image you want to insert. Then you can parse the return string and use the width and height values to add a rectangle shape of the appropraite size, like:

    ActiveSheet.Shapes.AddShape msoShapeRectangle 50, 50, iWidth, iHeight

    which you then fill with the picture:

    ActiveSheet.Shapes(ActiveSheet.Shapes.Count).Fill.UserPicture "c:\temp\test.jpg"

    This way the picture gets inserted using the pixel dimensions and the (print) resolution gets ignored.

    If desired, the GetPicDims function can be made more generic to get other ExtendedProperties.

    Regards
    Kez

Leave a Reply