Tools Course: Part 2

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1 Tools Course: Part 2 Christoph M. Kanzler Slides adapted from Dominik Wyser/Jean- Claude Metzger christoph.kanzler@hest.ethz.ch Zürich,

2 Overview Theory Recap: Create your own LaTeX document Math Equations Tables Figures Vectorized vs. Rasterized Images Image Editing with GIMP Exercise Work with GIMP Adjust a LaTeX template

3 Recapitulation Create your own LaTeX document

4 Before starting new LaTeX documents Use templates From laboratory > ask supervisor From journal homepage uthors/author_templates.html From LaTeX databases

$com/learn/creating_a_document_in_latex \documentclass[journal]{ieeetran} \documentclass[beamer]$

5 Getting started Tutorial adapted from: \documentclass[journal]{ieeetran} \documentclass[beamer] \documentclass[letter] \documentclass[report]

$Preamble Code before \begin{document} Important!$

6 Preamble Code before \begin{document} Important! Packages for fonts, languages, symbols, etc. etc. In our report: ethrelab.sty report.tex (until \begin{document})

7 Titlepage

8 Keep your files tidy \include{abstract} \include{chapter1}

9 For more information Find all this information and much more in: The Not So Short Introduction to L ATEX (by Tobias Oetiker)

10 How the Compilation of Different Files Works 2) Recompile Report.tex Introduction.tex Chapter1.tex Chapter2.tex Chapter3.tex Appendix.tex 1) Make changes 3) Get a PDF

11 How the Compilation of Different Files Works (2) Report.tex Introduction.tex %!TEX root = Report.tex Chapter1.tex %!TEX root = Report.tex Chapter2.tex %!TEX root = Report.tex Chapter3.tex %!TEX root = Report.tex Appendix.tex %!TEX root = Report.tex 1) Make changes 2) Recompile directly in Chapter3.tex (e.g.) With the following command you can compile your report from each included file. Place the command at the very beginning of each included.tex file. %!TEX root = Report.tex

12 Math Equations Refer to Chapter 3 - Typesetting Mathematical Formulae in The Not So Short Introduction to LATEX Include: \usepackage{amsmath} and \usepackage{amsfonts}, \usepackage{amssymb} for additional math functionalities Mathematical text within the paragraph: $ math formula $ \ begin{math} math formula \end{math} $ math formula $ Mathematical text apart from the paragraph: \begin{displaymath} math formula \end{displaymath} \[ math formula \] \begin{equation} math formula \end{equation}

Math Equations: helpful Tools https://en.wikibooks.org/wiki/latex http://www.sciweavers.

13 Math Equations: helpful Tools (hand drawing) offline Mac: brisk Windows: Laeqed

14 Math Equations (2) Math equation numerated and not included in the paragraph: Text and tabs in a math equation Use \mathbb{r} and \usepackage{amssymb} :

15 Math Equations (3)

16 Math Equations (4) (Hint: pmatrix)

17 Math Equations (5) equation vs eqnarray

18 Math Equations (6) Equation Numbering Hierarchy in the article class: section, subsection, subsubsection

19 Math Equations (7) Equation Numbering Hierarchy in the report class: chapter, section, subsection First equation in chapter 2 Include \numberwithin{equation}{section} before \begin{document} First equation in section 2.6

20 Tables h: here, H: HERE, H!: HERE!!! t: top of the page b: bottom of the page l: left aligned r: right aligned c: center aligned : make a vertical line in the table \hline R1C1 & R1C2 & R1C3 \\ R2C1 & R2C2 & R2C3 \\ \hline R3C1 & R3C2 & R3C3 \\ \hline

21 Tables (2) cline{i-j}: partial horizontal line beginning in column i and ending in column j Use tabularx package to create more advanced tables:

$Figures \begin{figure}[h] \centering \includegraphics[width=60mm]{mypicture.$ $[width=0.75\textwidth] [height=60mm] [scale=0.$

22 Figures \begin{figure}[h] \centering \includegraphics[width=60mm]{mypicture.pdf} \caption{this is the text under my image} \label{f:picture22} \end{figure} [width=0.75\textwidth] [height=60mm] [scale=0.75] [angle=45,width=52mm] PDF/PNG/JPEG Past: EPS (Encapsulated) PostScript Use eps2pdf converter or Inkscape or save directly as PDF

$Figures 2 pictures side by side \begin{figure}[h]$ $48\textwidth} \includegraphics[width = \textwidth]{mypicture1.$

23 Figures 2 pictures side by side \begin{figure}[h] \begin{minipage}[t]{0.48\textwidth} \includegraphics[width = \textwidth]{mypicture1.pdf} \end{minipage} \hfill \begin{minipage}[t]{0.48\textwidth} \includegraphics[width = \textwidth]{mypicture2.pdf} \end{minipage} \end{figure}

24 There is an error? How to debug Continuously compile your code > compile (and save) every few minutes Find / isolate the code that generates the problem > Error message of LaTeX compiler > Uncomment / cut-paste the most recent code you ve added > Add step after step commented code until you find the erroneous code Solve the problem > Are the brackets correctly set? > Is there a spelling mistake? > Is the correct header included? > Is this symbol allowed? > Google for the error message

25 Image processing: - GIMP - Inkscape

26 Rasterized vs Vectorized Images: example Which figures are rasterized? Vectorized? Wyser et al, 2017, Neurophotonics

27 Rasterized vs Vectorized Images

light in each of three channels (RGB) 256 3 = 16,777,216

(typically CMYK with cyan, magenta, yellow and black ink)

as 250 PPI, printer instruction: image size of 4 4 inch If it

28 ppi vs. dpi Pixels per inch (ppi) Digital measure 256 intensities of light in each of three channels (RGB) = 16,777,216 colours Dots per inch (dpi) Physical measure 4 colour channels (typically CMYK with cyan, magenta, yellow and black ink) Example: a bitmap image with pixels If it is labeled as 250 PPI, printer instruction: image size of 4 4 inch If it is labeled as 100 PPI, printer instruction: image size of inch But: Digital measure (1000x1000 pixels) remains the same!

29 Image Resolution 300 dpi cm Determined by physical resolution of retina at reading distance (25 30 cm) ~300 dpi, ~120 dots per centimeter Cell phone display (Samsung S7): 577 ppi (> 300 ppi) Daily newspaper: 150 dpi

30 Guidelines 300 dpi cm Compress documents to 150 dpi for printing (e.g. report) Use originals for posters (Save on CD) Use minimal resolution of 600 dpi for images as sized on A4 (corresponds to 150 dpi on A0) Inspect A4 PDF with 400% zoom before printing Use vector graphics whenever possible (logos, drawings, schematics)

Reducing Image Size (KB, MB) good size for presentation: 200

31 Reducing Image Size (KB, MB) good size for presentation: pixels high 1600x1200 pixel, 1.5 MB 400x300 pixel, 45 KB

Reducing Image Size (KB, MB) (2) good size for presentation: 200 300 pixels high

32 Reducing Image Size (KB, MB) (2) good size for presentation: pixels high 1600x1200 pixel, 1.5 MB zoom x4, cropped 400x300 pixel, 45 KB zoom x4 (e.g. poster), cropped

33 Obtaining High-Quality Pictures Take pictures yourself: uniform background, different from object colors Download from WWW: indicate source, verify resolution Download from dedicated database e.g. Image Processing: cut, enhance colors Draw sketches yourself: Vectorized graphics (e.g., Illustrator, Inkscape)

34 GIMP Open Source Photoshop

35 GIMP Examples

36 GIMP Examples (2)

37 Edit Lenna with GIMP Image > Crop to Selection

38 Edit Lenna with GIMP (2) Original Tools > Transform Tools > Flip Tools > Transform Tools > Rotate Colors > Colorize Saturation=0 Colors > Auto > Equalize Tools > Text

39 Edit Lenna with GIMP (3) - Filters Original Filters > Blur > Blur Filters > Blur > Pixelize Filters > Edge-Detect Filters > Light and Shadow > Supernova Filters > Decor > Old Photo

40 Edit BMW with GIMP Only filters will not give desired results Try Colors-> Check color of wheels, lamps and reflected bars

41 GIMP Output Formats *.gif *.eps *.jpeg Or print as a *.pdf *.png (PDF creator) BUT: Don t vectorize the rasterized graphic!

42 Important commands

Publication Quality Graphics

Publication Quality Graphics Biochemistry Boot Camp 2018 Session #6 Nick Fitzkee nfitzkee@chemistry.msstate.edu Why Quality Graphics? Clarity of Presentation Sharp-looking Posters, Presentations, Papers