Saturday, November 26, 2005

know your way... to KLCC?? thats easy...

Pusing here... pusing there... sampai lah. Hmmmm... how do you actually navigate around the roads, signs or hop on the public transport. Those from KL or PJ have it at the back of their mind... but how do we tell this to a friend from Penang or JB?? You grab a paper and sketch .... a Map.

Maps ... well... yeah... I would say maps are kinda like a representation of space. A guide to navigation and relationships between objects of space. The science and art of map making is also known as cartography. One of the most famous cartographer of all time is Gerardus Mercator who introduced techniques of meridians and parallels of latitude by straight lines ar right angles.
Actually man has been fascinated with space, navigation and its form since Stone Age... think about it... how do I know where is the best place to hunt... how do I records the different sources of food and water... u need navigation... thats the beginning of maps. Another form of important maps are transportation... rivers, paths, hunting trail, hiking path... now in modern times its road maps, nautical charts and rail networks.

However, not all modern maps focus on accuracy. There is a delibrate intention to make maps innaccurate... but readable. This is the beauty of map making... its an art ... a skill. Most readable maps such as road maps, topographic maps, town plans or transport plans sacrifice accuracy in scale to deliver visual usefulness to the user... for example shifting the location of buildings or widening roads to create some readable effect.

For me personally... I have always been fascinated with the globe... since a kid. The different patterns, lines, text and colours that make the globe is inspirational. I always thought what a cool job that must be... to draw all those countries... must be nice to know all those places... travel to all those great cities. How interesting.



Mercator's map of Europe.











Amerigo Vespucci, after whom America was named... some say he is the original founder of America

Abraham Ortelius, influenced by Mercator, credited as the creator of the modern atlas

Monday, November 21, 2005

pusing balik... a recap...

Okei... so far we have covered a bit on GIS software and database components.

Basically, I feel a GIS Software should cover any computing aspect of maps, plans, geography, images, analysis, editing, compilation, visualisation and geoprocessing. With the advent of GIS software in the last 20 years we can now work faster, precise and more efficient... as compared to work done manually for centuries. Its a slow revolution, not easy to accomplish... many countries are slowly embarking on digital evolution.. its a process that will take months... if not years to reach a proficient level. Its not like any other software... in GIS u need industry experience too. Some are still arguing the benefits of GIS... all kinds of technology issues to solve. No doubt GIS software has come a long way and many are beginning to see the benefits... its not easy though.

A database component of GIS is also called geodatabase and its the main storage area for spatial data. Its actually referenced to a location on the earth's surface. The schema design (data model) of a geodatabase should actually cover every aspect of the geographic feature.. be it points or lines. I would say that its the evolution of data storage that changes the GIS software features... how GIS data is stored has a direct effect on GIS software functions and performance. Computing power changes and hardware improves, of course... but storage factors now govern more important aspects of GIS implementations. Data models, Table Relationships, Data Type, Field Constraints are becoming more important these days... hopefully moving at the same pace as other non-GIS UML database implementations.

Thursday, November 17, 2005

ozzie... ozzie... ozzie

Wow... what an achievement... after years of waiting and trying... finally Australia qualified for the World Cup. Congrats mate... am sure half the population is having hangover now... must be a great time to be in the stadium that day. Again ... well done. No offence to Uruguay but this time the aussies deserve the chance.

I was mesmerised and awed by the elegance and beauty of Australian indegenous art... Aboriginal art. Mainly the ones in caves and huge rocks. Its been around for so long... thousands of years... one of the oldest continous cultural tradition. What amazes me is the use of bright colours and the ingenius preparation of paint from soil, minerals, plants and seeds. This is the beginning of man using his creative talent in mixing and matching colours. These people have an eye for colour coordination in their work long before Europeans, Indians or Chinese. Even today... contemporary aboriginal art maintains the true nature of their art... symbolism, dreams and animal motifs.
Pirrmangka Reid
My Birthing Place


Gordon Barney
Birrno Rockhole




Kylie Puruntatameri
Kulama Design

Wednesday, November 16, 2005

are u happy?? hhmmm.... eyes wide shut...

Hi there... this UN global demographic index (http://hdr.undp.org/) was out Sept 7. Most countries and governments eagarly wait for this UN report because it involves reputation and national pride... comparing status of countries and its human factors.

Human Development Index http://hdr.undp.org/statistics/data/indicators.cfm?x=1&y=1&z=1
56 Panama 0.804
57 Trinidad and Tobago 0.801
58 Libyan Arab Jamahiriya 0.799
59 Macedonia, TFYR 0.797
60 Antigua and Barbuda 0.797
61 Malaysia 0.796
62 Russian Federation 0.795
63 Brazil 0.792
64 Romania 0.792
65 Mauritius 0.791

Sometimes we Malaysians are so overwhelmed and blinded by our print and TV reports about how great our country is economically... or how good the standard of living... or how wonderful it is to live here. Looking at this index, we got a long way to go before catching up with developed countries. The truth is we need to improve the living standards in states other than KL, Selangor or Penang. It all boils down to good analysis of demographics and improving socio-economic conditions our people... we need to spend more effort, time and good research on improving all aspects of human development in Malaysia. This is where the power of GIS can be used to its max - urban and regional planning, economic planning, tourism, structure plans, agriculture planning, industrial planning, emergency services, education and much more.

1 Norway 0.963
2 Iceland 0.956
3 Australia 0.955
4 Luxembourg 0.949
5 Canada 0.949
6 Sweden 0.949
7 Switzerland 0.947
8 Ireland 0.946
9 Belgium 0.945
10 United States 0.944

Tuesday, November 15, 2005

get a lot of questions on this... from many Malaysia GIS users

In ArcGIS Desktop software architecture... we split the "Map Display" files and the "Map Data" files. Its 2 different entities. You need to get this right.

There are many important reasons for this. Please also remember ... if you change the "Map Display" files... its not going to change the "Map Data" content... the data remains the same.. only the map display changes. You can have multiple MXDs for one geodatabase, no problem.

Please also remember that LYR files are a subset of MXD files. Only if you want to export the labels / symbols reference of ONE feature class out... its recommended to use the LYR file... otherwise using MXD is suffice. This is ONE Lyr file for ONE Feature Class. You can have multiple LYR files for one feature class, no problem.

Use the term Feature Class (point, line or poly) and not Layer or Theme.

How you plan the use of "Map Display" files and "Map Data" files is very important. If not you will have a huge collection of files and folders to maintain. Please remember to slowly phase out your use of so many shapefiles... convert to geodatabase and organise them as Feature Classes/Feature Datasets.

Please read the terminologies below carefully.

MXD: In ArcMap, the file that contains one map, its layout, and ALL its associated layers, ALL tables, charts, ALL symbologies, ALL labels, coordinate system information, VBA customisation and reports. Map documents can be printed or embedded in other documents. Map document files have a .mxd extension. ALL layers can be stored in map documents (.mxd)... or if you want to save them INDIVIDUALLY as layer files (.lyr).

LYR: In ArcGIS, a reference to a data source, such as a coverage, geodatabase feature class, raster, and so on, that defines how the data should be displayed on a map INDIVIDUALLY. Layers can be stored in map documents (.mxd) or saved individually as layer files (.lyr). Layers or Feature Classes are conceptually similar to Themes in ArcView 3.x. The visual representation of a geographic dataset in any digital map environment.

STYLE: An organized collection of predefined colors, symbols, properties of symbols, and map elements. Styles promote standardization and consistency in mapping products.

PRJ: Usually its a text file named prj. The PRJ file contains the coordinate system information for the data. In a more general sense, PRJ can refer to the coordinate system of data. For example, "The PRJ of the shapefile is WGS 1984 UTM zone 15 north."

ArcView Project: In ArcView 3.x, a file for creating and storing documents for GIS work. All activity in ArcView 3 takes place within project files, which use five types of documents to organize information: views, tables, charts, layouts, and Avenue scripts. A project file organizes its documents and stores their unique settings in an ASCII format file with the extension .apr.

Geodatabase: An object-oriented data model introduced by ESRI that represents geographic features and attributes as objects and the relationships between objects but is hosted inside a relational database management system. A geodatabase can store objects, such as feature classes, feature datasets, nonspatial tables, and relationship classes. Its format on a personal geodatabase is MDB (MS Access) or enterprise is RDBMS (Oracle, SQL Server etc)

Shapefile (SHP / DBF / SHX): A vector data storage format for storing the location, shape, and attributes of geographic features. A shapefile is stored in a set of related files and contains one feature class. This is slowly gonna be phased out.

Feature class: Feature Class is a collection of geographic features with the same geometry type (such as point, line, or polygon), the same attributes, and the same spatial reference. Feature classes can stand alone within a geodatabase or be contained within shapefiles, coverages, or other feature datasets. Feature classes allow homogeneous features to be grouped into a single unit for data storage purposes. For example, highways, primary roads, and secondary roads can be grouped into a line feature class named "roads". In a geodatabase, feature classes can also store annotation and dimensions.

Feature dataset: collection of feature classes stored together that share the same spatial reference; that is, they have the same coordinate system, and their features fall within a common geographic area. Feature classes with different geometry types may be stored in a feature dataset.

Wednesday, November 09, 2005

I need to swim... a few hundred laps... please

Last 2 nights I finished watching "Aliens of the Deep", a movie by "Titanic" director James Cameron. What really fascinated me to get this movie in the first place... is the idea that a big budget Hollywood director wants to make a docu-film about the deep sea.

How dissapointed I am now.. http://disney.go.com/disneypictures/aliensofthedeep/

All the hype and excitement about the movie makes you feel that finally Hollywood can spend some good money in a real nature film production. At least millions more than the normal nature channels. Its meant for IMAX 3-D but please don't waste your money.

You ask... why the movie is such a disaster??
1. James Cameron suddenly becomes a super expert in deep sea equipments and submarines
2. James Cameron is a super genius with ships and marine engineering, offering ingenious solutions
3. James Cameron is smarter than the Nasa scientists and knows more than them
4. Lots of fake acting, bad music, fake laughing... and most of all ... BAD JOKES
5. Russian scientists are there ONLY to make the numbers, act dumb and play volleyball on board ship
6. American scientists are so smart... they know everything!! Super confident. Yeah right...
7. Deep Sea "bizarre" creatures are actually only crabs, bacteria and shrimps
8. Outer space explanation is for the lame brained only... NASA's best explanation of course

Any National Geographic or Discovery 1-hour production can beat this film flat. Hollywood again does its marketing "magic". Stupid.

"Each time I reason, each time I try to use logic, I'm extremely pessimistic. When I use my heart, when I use my faith - and I have a stainless faith in mankind - then I become optimistic. A situation will arise that will awaken people, and we will suddenly understand that we have to join forces."
Jacques-Yves Cousteau

Known for his memorable films and written accounts of the underwater world, French oceanographer Jacques Cousteau devoted much of his life to exploring and defending ocean life. Cousteau developed the first underwater diving station and was also a co-inventor of the aqualung, a self-contained breathing apparatus. He is pictured here aboard his ship Calypso.

Tuesday, November 08, 2005

back to work.... dream on... sigh

Hi there... its back to work and grind, grind, grind. It would be really awesome to have an art studio and spend the whole day painting... and better still lazing around. Nice.

OK... so we know a little about Titian. I mentioned about his church paintings in my earlier blog... but as he became older and more experienced... he turned into potraits and landscapes... and slowly developed a painting skill that is not rivalled at that time in Italy.

His career as a potrait painter has developed his art into a new realm of Italian and European history. Its because he is a well known historian and captures many ongoings at that time. Many of his paintings are historical documents and records of famous individuals... monarchy, businessmen and religious leaders. However he is not only painting people and history... he has the gift of evoking character from models. He brings the person to life. Just look at any of his potraits and without camera or film can capture the same essence... it comes to life.

To me his works are worthy comparision to my favourite master Rembrandt. Voila.


Title:Porträt eines venezianischen Edelmannes Current location (city): Washington (D.C.) de: National Gallery of Art







Title:Porträt eines Mannes mit Handschuhen Current location (city):Paris Musée du Louvre














Saturday, November 05, 2005

to all Malaysians... have a safe and happy ... Deeparaya

Hi there... took a short break... Divali and Raya... needed a holiday lah. Anyway, day dreaming by the beach aside... I suddenly remembered .. my colleague visited Venice on her holiday recently... and I have not mentioned one of my favourite painter, Titian (1485-1576) at all in this blog. Its really a shame after all these months I totally forgot about this great master from Venice. I still remember as a teenager ... admired this guy's amazing oil painting technique and dedication to precision... a grand master of oil paints... the greatest painter of the Venetian (Venice) school. Just like the great Rembrandt he had immense talent and vision. What struck me as a teenager then.. and now... is his use of bold colours... I was very much into poster and acrylic colours... strong and raw... and his work (in oil, mind you...) blew my mind.

His early works included one of the greatest altar pieces (Assumption of the Virgin, 1516–18, Church of Santa Maria Gloriosa dei Frari, Venice). Now whats striking is his use of colour and light. The first feeling you get is the warm colours and the brave use of bold colours. Its very easy to use light colours in oil paints... easier to play around and make changes. We normally start from light coats to thicker strokes. Titian is a grand master in not overdoing strong colours but at the same time gives a magic effect for our eyes. This was nearly 500 hundred years ago... amazing huh.

1519-26 Altar-painting: oil on canvas, 478 x 266 cm (188 1/8 x 104 3/4 in); Church of Sta Maria dei Frari, Venice