Wednesday, 28 August 2019

Is Land Surveying Art or Craft?

Is Land Surveying Art or Craft?

Lately this question of “art or craft” has come to mind. One of my best friends has vast knowledge of the Italian sculptors and painters. His life-long profession has been the restoration and preservation of art objects, and I would think if there were guild craftsmen, he would be one.
In training of my survey apprentices, I encourage them to locate details at sites such as possible works of art, gravestones for pets, bird houses (if there are not too many) to name a few. In the course of surveying the properties of wealthy land owners, I will often find what I think the owners might believe is a piece of art. There will be topo shots labeled “ART” and the office staff know I want it shown some way on our plan. Using my cell phone, I snap pictures of these and sometimes will ask my friend “Is this art, or craft?” Then I wait for his reply. 
Today, I ran out to find more monuments to resolve a survey boundary. The accompanying photo is a limestone monument that was on the plan of survey.
This stone is a beauty and sticks up out of the ground about 6 inches. Notice the hole in the stone and the lines radiating off the center of that hole. In my opinion, the drill hole was made using a star drill. How many apprentices today have ever held a star drill? It was once a standard item in most survey trucks. This hole was deep and must have taken time. While my wife thinks of this as craftsmanship, I find this to be “art.” The surveyor who set this was practicing the art of land surveying. The surveyor who made this drill hole and set this monument was the real deal. 
With the current run to technology, much of the “Art of Land Surveying” is disappearing. Fifteen years back, there were people still hand-drafting plans. I always enjoyed seeing a beautiful plan and took a few minutes to appreciate the care and precision that went into the drafting. 
I recall being at a surveyor’s office with my boss. He looked at a mylar sheet and softly said, “I wonder who drafted this plan, it’s really well done.” Then he asked around their office and found out it was one of the owners, a man who knew how to keep a pencil sharp. He was using those old ‘lead holders’ and the sharpener you stick the pencil into and rotate it to get that needle point for fine lines. 
The lead holders were replaced by Pentel pencils which could hold 0.03, 0.05, 0.07, etc. lead and colored lead and keep a uniform line weight (width). The 0.03 lead was incredibly thin and broke often. 
Back then, there were draftsmen who were artists on survey drawings … and then there were craftsmen. You could see the difference. 
While in the office of the general manager of the company, I had the pleasure of a hands-on lesson in the art of drafting. He was picking out the fonts and Leroy guides for me to lay out the title sheet for a set of perhaps a twenty-sheet plan set. He explained that it was the most important sheet of the set because it is what the client and municipality would see first. If it looked impressive then it would follow the rest of the work was impressive. I felt the truth in what he expressed.
This approach to plans has been continued into my computer drawings. If mine is a detailed plan of survey, then it inspires confidence in the viewer. When I go the extra tenth of a mile, it might seem like twenty. 
We all want to create nice plans, but every beginner needs the help of an experienced person to teach them the art and the craft of their profession. When older professionals can instill this in trainees, it continues the excellence. 


Driving Quality

When the vice president of one of the very large Philadelphia engineering firms worked as a young engineer in Virginia, the office staff complained about the picky and demanding drafting manager. In one instance, the hand scribbling to indicate concrete did not have enough scribbles and dots. They were ordered back to the drawing board to fix that plan. Angry young engineers drew in very tiny curse words among the dots and squiggles and laughed to themselves. The next day they all received a lecture about quality drafting. This engineer, 20 years after that event, smiled broadly as he told me the story. Those various types of hand shadings were soon to be replaced by “craft” with sheets of ‘sticky paper’ with preprinted hatching. The fine Leroy lettering was replaced by Kroy lettering machines, and silt fence lines by thin rolls of preprinted “line types.” Any competent computer draftsperson knows about line types and a computer and plotter make them all exactly the same. This also applies to the hatching and shading. 
I don’t think that current plans are nearly as attractive as the older plats. The newer plans seem to look more like craft. Craft does not mean they are full of errors or mistakes, but they rarely look to me like art.


Back to the Drawing Board

Do I want to go back to the drawing board? Heck no! But, there are ways we can distinguish our work and show the art of land surveying by the information shown on our drawings. For example, the plan I had which showed the stone in the photo never told us where on the line the stone existed. Graphically, it was not the right-of-way line. I explained to my draftsperson who was trying to make use of the stone, concrete monument, and pipes she found, that it was poor work to show the stone but no tie distance and that perhaps the surveyor wanted to keep that information secret. I want other surveyors to know and understand how I came to boundary conclusions. In teaching the apprentice, I explained how and why I always hope to show the relationship of stones found to the right-of-way line and then end of the line when the stone is on the sideline. 
Another way I have seen this is when there is an old plan and it shows “PIN SET ON LINE” with no distance to the ends of the line. Perhaps they thought it would bring in more work since pins get covered up and must be found and thus there is a charge for surveying services. A work-around I teach people is to scale the distance to the pin and stake out to it in hopes it was drafted correctly. I want surveyors who follow my work to find my pins, which will point to the monuments I used to make my decisions, in hopes that arguments rarely happen about who is right and who is wrong. To do that, I have to leave trail markers using sub-distances on my plans. 
We have all come across surveyors who produce comics rather than art, and the nature of bad work is it’s neither art nor craft. I’ve known party chiefs who would sit in their truck and sketch the topo from the driver’s seat. They had a good eye for perspective and making the picture look good and understanding of the shape of contour lines, but this was false work and though it saved money, it was wrong. 
There are still people who use fences with road centerlines to set up the boundary of a topographic survey plan and just don’t care about doing things right. In this area of the country, our building setback lines are often based on the street right of way and the property lines. Architects need to know precisely the relationship of the features to the setback lines and that cannot be assured by fences, rock rows, telephone poles, or simply splitting the road width. 
There are times when a client thinks they know better and want to tell me to not tie the topo into the boundary, they don’t care about it. One way or another, I will try to use the same care when surveying even if the client won’t let me charge enough. It’s my pride in my work that drives me to prepare a good product as I suppose it’s the same with other surveyors. We each must decide if we want to compete with low bidders who create a poor product or keep our own personal standards of what should be on a survey plan. Our employees will be watching us and follow our lead. 
When an apprentice and I go over the plans found in the process of researching jobs, I like to make mention of the surveyor or engineer whose name is on the plat and remind them first to go to the title block and see who is responsible for the survey. From there you know the quality of the work. When I see nice work on the plans of others, I like to let my people know so they understand why I think it’s art. 
I know people who invest in art because of its value, and because, well, its art and they love to look at it. My personal investment in the art of land surveying has been paying off for some time now. I see it in the apprentices I teach and their work. I find it on my old plans and the records I’ve kept. It has also saved me money by avoiding possible mistakes while making neighboring surveys easier. 
The experience and wisdom licensed land surveyors possess, along with engineers and skilled party chiefs cannot be taught in school. There would be too much territory to cover. For that reason, even the brightest student in a four-year surveying degree program cannot take the test in Pennsylvania until they have five years of practical experience. If young apprentices are in surveying for the long haul, the things we teach them today and the art and craft we pass along will pay dividends for generations to come.

Thursday, 22 August 2019

The history of ArcGIS

The history of ArcGIS


EsriEnvironmental Systems Research Institute, knew there was a starving market for location-based systems also known geographic information systems (GIS). In 1990s, Esri started working on a product that later became one of the best enterprise solutions for GIS implementations on Windows systems. In 1999, ArcGIS was released. Since then, ArcGIS hasbecome the most used commercial GIS solution. ArcGIS was then renamed ArcGIS for Desktop, and the ArcGIS name was used as a product line instead to carry lots of products under it.

When the Web started to become ubiquitous in early 2000s, Esri adopted the Web by rolling in ArcGIS for Server and gradually ArcGIS functionalities as web services so that it could be supported on multiple platforms including mobile phones.

A decade later when the cloud solutions began to surface, Esri released its Software as a Service (SaaS) solution ArcGIS Online. Designed to simplify the user experience, ArcGIS Online hides all the ArcGIS "contraptions" and technologies to relieve the user from maintaining the hardware and software, leaving the user to do what they do best, mapping. Having everything in the cloud allows users to focus on their work instead of worrying about configurations, spinning up servers and databases, and running optimization checks.

Note

SaaS, a cloud-based software distribution model where all infrastructure, hardware, management software, and applications are hosted in the cloud. Users consume the applications as services without the need to have high-end terminal machines.

Today, Esri is pushing to enhance and enrich the user experience and support multiple platforms by using the ArcGIS Online technology.

In this book, we target one of the core products of the ArcGIS family—ArcGIS for Desktop. By using real-life examples, we will demonstrate the power and flexibility of this 16+ year-old product ArcGIS for Desktop. We are going to use the various tools at our disposable to show how we can extend the functionality of ArcGIS for Desktop.

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Wednesday, 21 August 2019

FUSING IN CAD CAPABILITIES INTO GIS. BY HONEST S. O. U.

FUSING IN CAD CAPABILITIES INTO GIS.       BY HONEST S. O. U.              

ArcGIS as a GIS software lacks some cartographic capabilities for drafting of work. We are often left with converting/ exporting our GIS work into a CAD environment and after some modifications in CAD environment, the work is exported back to ArcGIS environment. GIS lacks some conventional cartographic signs and symbols and does not allow free sketching of such signs/ symbols, a times we make do with Adobe Illustrator and other softwares to aid us.        The question therefore is,  how can we fuse in CAD capabilities into GIS environment?  I found out a simple method of doing this. You can convert your shape file to CAD file. Without closing the ArcGIs, open the CAD file and do the necessary modifications on the CAD  work. Use layer plotting for all text files, signs and symbols so that they can come out as layers in ArcGIS. After all the modifications both the layout and adjustments in the digitized features (Point, Line and Polygon) .Save your CAD work and open your ArcGIS file which u minimized and you will find all the modifications on your ArcGIS.                      Cheers.

STEPS FOR CONVERTING YOUR ArcGIS SHAPE FILE TO CAD.                                    1.Goto ArcToolbox.                     
2.Select Conversion Tools.                                     3.Select to CAD. Select ,Export to CAD.           Under Input Features, (select the shape files you want to convert). Under Output Type( select the DWG- the AutoCAD version u want to save it),  Under output file(Select the folder you want to save it).                                           4. Select Ok and wait for the files to convert/export to CAD. When its successful, it pops out successful message on the ArcGIS environment

Tuesday, 20 August 2019

*Step-by-step work through on earth volume computation using sufer*

*Step-by-step work through on earth volume computation using sufer*
The procedure assumes you already have sufer installed on your PC
👉Launch the sufer application by double clicking its icon on your desktop
👉On the program main menu, click Grid
👉Click data... in the drop down sub-menu
👉Navigate and locate the raw file containing your x,y,z data defining the surface in question
👉Click Open
An interface showing some sample of your data is displayed on the screen
👉Ensure that the appropriate field delimeter is selected and click OK
👉On the Grid Data interface that comes up next, select the appropriate field (i.e column) for each of your x, y, z data as contained in the previous interface
👉Select any desired griding method on the space provided for such on the Grid Data interface. The common and default method is kriging
*Note* : the result you obtain depends pretty much on the grid method you select as each of the methods uses different models in predicting the Grid elevation of the unobserved points
👉Click OK
The griding is then carried out by the application and the report displayed on the screen that can be saved to a file
*Note:* These procedures applies for each of the surfaces in the case of two surfaces volume computation. For a single surface, you just do that once for the available surface file

Next is to compute volume using the grid file created
👉On the program main Menu, click Grid
👉Click Volume in the drop down menu
👉Browse and locate the grid file created
👉Click to open the file
👉The Grid Volume interface pops up where you are expected to define your surfaces
👉The upper surface is natural ground surface (Topo-surface) for which a grid file has been created
👉The Lower surface is the grade or design surface
👉 For each of the surfaces, you can either chose to load a grid file or use a constant value
👉For a single surface volume with only the natural ground grid surface elevations, click and upload the grid file for the upper surface and define a constant, z value for the lower surface   (graded surface)
👉 Leave the Z- factor as 1
👉Click OK
The cut and fill volumes are displayed with the associated areas obtained

*Note*: the results earth volumes may vary from one application to another even with the same data depending on the method for computing areas and of course the griding method

Sunday, 18 August 2019

15 things guys want but wont ask for




15 things guys want but wont ask for

by Azeemen


Written by Azeemen
1. Ask him how his day went. It means a lot to him if you ask him if there is something bothering him.
2. Give him reassurance that he is the only one for you. He knows that he is not the best guy out there. He also thinks that he is replaceable.
3. Support him in all his endeavors. Cheer him up when he is down!
4. Do not choke him in the neck. Let him breath. Let him do the things that he loves to do.
5. Do not question his intentions. He chose you for a reason.
6. Trust him.
7. Cook food for him.
8. He likes it when you are being clingy to him.
9. Give tight hugs and warm kisses.
10. He likes funny conversations and deep ones.
11. Brag him to your family members and friends.
12. Respect his decision and choices.
13. Talk things in private. Do not bad mouth him most especially if his friends are around.
14. When you tell him to keep going and that he is on the right track.
15. When you stick to him no matter how the journey gets tougher

Saturday, 17 August 2019

GOOGLE EARTH LIMITATIONS

GOOGLE EARTH LIMITATIONS.                       Google earth images does not come in high resolution although some technique can be employed to increase the resolution of the images. Such techniques includes and not limited to breaking the area of study into a well planed overlaying strip layers. This helps you download images with a small area that will be of a bit high resolution and this requires that for that given study you may have up to 30 image layers. Remember google earth images lacks spatial reference and this means that there is need to Georeference all these 30 image layers and thereafter you do image mosaic to merge all the 30 overlapping image layers. This is cumbersome to say the least and also introduces alot of errors. What are then the sources of errors here? Before downloading such images from google earth, you have control points you want to use for georeferencing (can be monument or landmarks you know their coordinates or you can choose those points on google earth and extract their coordinates) .These points while georeferencing, you may not be able to get the exact point having that coordinate in the images and this shift have introduced an error, imagine where such accumulates over those 30 image layers and see the error you have just in your georeferencing. This results to tilt in the image after georeferencing. When digitizing also, there may be some shadows on the structures as a result of low resolution data, and you may trace the shadow thinking it's the structure outline. This also a source of error. These and many more are the limitations of google earth images but fear not as am about to introduce you to amazing that can offer you much more and eliminates such limitations as observe in google earth imagery.

Friday, 16 August 2019

MY FATHER’S FARMLAND

PART 2
“MY FATHER’S FARMLAND”
©️Opeyemi Ojerinde Akintunde

Oba ( King) as His name suggests had a way of making people do his bidding. He cajoled his sisters into the fasting and praying program.

Ola(Wealth) and Ope (Praise) joined Oba in the fast and it was a humbling time for them. They wept before the Lord and prayed with all their heart.

They were so broke that they didn’t have money to buy food to break their fast on the third day.

Ola ( Wealth) who was the business minded one, decided to go look for a means of making money. As weak as she was, she walked straight to one of the beautiful houses in their environment. She knocked at the gate and surprisingly to her, it was the Madam of the house that answered...

“ Good Afternoon ma!” Ola had said

“ Yes, Good Afternoon !” Miss Johnson said with a puzzled look for lack of recognition

“ Ma, my name is Kikiolaoluwa and I live down the street, I am not here to beg you for money, but I need money for my siblings and I to eat, so please ma, is it possible for me to wash any dirty clothes you have, to earn a little cash...” Ola had said pleadingly

“ Wow!,... unfortunately I use a washing machine that takes care of my laundry”

“ What about sweeping the compound, I can see your compound needs some sweeping” Ola said with desperation in her voice as she was simultaneously stretching her neck in other to have a good look at the compound..

“ Hold on young lady, is this about you getting money to eat, if it is about that, I can give you some money.”

“ Aww, That is so nice of you ma, but I would love a permanent work, something that will fetch me regular money. My siblings and I just lost our father and my brother asked us to wait on God for three days for God’s  guidance, Today is the 3rd day and we don’t have anything to break our fast... That’s why I took it upon myself to do a menial job to get money...so if you give me money right now, it might not be enough to sustain us for days..” Ola said

“ Are you saying, you and your siblings have not eaten for three days, because you were fasting and now you have nothing to break your fast ?” Miss Johnson asked

“ Yes!”

“ Wow!...where do you live?” Miss Johnson asked

Ola pointed towards her house and Miss Johnson told her to take her to their place. She wanted to know the authenticity of Ola’s claims. As Miss Johnson walked behind Ola, Ola knew Oba( King) was not going to be happy with the development. Oba didn’t like asking people for Favours. Ola had always told him, he was proud, but Oba would say “It is Self respect, I know my worth, I may not be where I ought to be, but I must not sell myself cheap because of where I am today!”

“ ...eat at my place” Miss Johnson was saying but Ola only heard her last words about eating at her place...

“ I am sorry, I didn’t get you ma...I was lost in thoughts”

“ Oh!, I was saying that if I can verify your claim, then you and siblings will follow me to my place to have a decent meal...”

“ Oh!, thank you ma’am, that’s really thoughtful of you ma’am. May God bless the work of your hands and may your children find help wherever they find themselves...”Ola said beaming with smiles

“ Amen..” Miss Johnson said returning Ola’s smile

At that point they were already in front of the Trio’s room. It was a very small dark room with the only source of light finding it’s way into the room from a miniature window. The rooms had no furnitures except for a wooden shelf of books belonging to Oba. They had sold everything sellable, but Oba being an avid reader could not do away with his wooden shelf that housed his books. They also had two mats on the floor; the twin girls slept on one while Oba slept on the other mat. There were sacks neatly placed in a corner. The trio had neatly arranged their clothes in there...

Oba was lying on the floor reading a motivational book about leadership, but Ope had a small mp3 music player in her hands with her earpiece tucked in her ears... Oba sighted the visitor first and on seeing her, he jumped to his feet wondering what his sister had done...

Miss Johnson looked around and could not believe people could still live in houses like this, Eben, Her security man who she had sent on an errand earlier that morning was not even living in a room as terrible as what the trio was living in..

“ Hello...” Miss Johnson said

“ Good Afternoon ma” Oba and Ope said looking at Ola for answers as to why they had a visitor in their room...

“ Emmm... Madam lives down the street... I went to her place to see I can get a menial job in other to fix food for us, but she asked to know my house to be sure of how genuine I am “ Ola said...

“ Ok .. Ma.., she is very genuine.. She is our sister ...”Oba said taking full responsibility as always

“ Oh!, You are a twin!” Miss Johnson said when she noticed Ola and Ope were identical.

“ Yes ma”

“ Wow!, I have always prayed to have twin girls, I totally adore twins... It is well, Your sister has told me about your recent loss and I  am very sorry for your loss, But whatever I am able to do, I will do for you, especially for the fact that you know the Lord. What challenged me about her, was the fact that she said you all took it upon yourself to wait upon the Lord after losing your father..., that is a bold step I must say. For that reason, I won’t hesitate to show God’s Kindness to you..” Miss Johnson said...

“ Ok ma, thank you ma’am!”

“ So what do you say?” Miss Johnson asked

“Was this woman asking if she could help them?” Oba wondered silently...

“ Yes ma!, we will be glad to accept your God centered kindness towards us...” Oba said stressing and Emphasizing the “ God-Centered”. His intention was to let the woman know that though they were poor, they were not willing to compromise by doing anything that doesn’t glorify God...

“ Ok, let’s start with you breaking your fast at my place. I will have my maid make something for you!” Miss Johnson said with a smile.

Ola was the first to return the smile, followed by Oba, but Ope was the meticulous one. She was always very careful about trusting people. She was the deep one among the trio, she spoke few words but had deeper insight than the other two...

“ Can’t she give us the money and we sort ourselves out?” Ope whispered in Oba’s right ear...

Oba gave her a reassuring look, that they would be fine...

Oba, Ope and Ola went with Miss Johnson to her house and .....

To be continued

To follow up on this series, Follow the author on Facebook @ OPEYEMI OJERINDE AKINTUNDE-OFFICIAL Feel free to share this series, but please do not edit out the credit of the author and details. Lets be mindful of others.

DEEP THOTS NOVELS
INSPIRED BY THE HOLY ONE
Written by Opeyemi O.Akintunde
+234-8151103646

Photo credit: Internet

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